Does your Wifi disconnects and reconnects on its own? - Xiaomi Mi A1 Questions & Answers

Hello,
sitting 6 steps away from the router watching youtube on the phone and then I find "Loading" and I look at the wifi icon and I find a question mark. the phone keeps disconnecting from the network then reconnecting on its own. Did you face a similar issue or if you have a fix that would be fantastic, please.
That happened 6 times in the span of 30 minutes and NO it's not a router problem, I tried (Huawei GR5 2017 - iPhone 7+ - Galaxy Note 5 - Galaxy Tab 8-inch) They work fine.
There's also another problem, that it doesn't connect from a distance of about (1-2 floors upward which I assume is like 5 or 6 meters max in this house) It seems the network and tried to connect > authenticating > nothing happens.
Edit: Forgot to add another problem (3 so far in wifi), Internet is SLOW, Instagram & chrome load very slowly, why is that? All these other devices work find and I tried a low-end device (Grand Duos) it works okay and loads faster on Instagram. (websites I tried, XDA and Setaswall for wallpapers "barely loads 3 images of the many")
Note, this is stock android, the phone is as it came, no changes, just updates.
Hope someone can help, thank you.

Maybe try flashing custom kernels it has updated wifi drivers.

WiFi disconnect problem i agree.
But loosing connection from 1-2 floors is not phones fault. Compared to other phones its range is quite low.

Yes, it did happen before and it was reconnecting between the 2.4 ghz and 5 ghz every 10-20 minutes for no reason
I disabled my 5 ghz network and stayed on 2.4 ghz since it's much more reliable
Btw, it did happen in both stock and custom roms

t0per666 said:
Maybe try flashing custom kernels it has updated wifi drivers.
Click to expand...
Click to collapse
I thought about that, but I just bought the device like a week ago and wanted to keep it as it's for a while to check everything as it is then decide if i'm gonna root, install modules or other stuff. Thanks for replying.
alkesh95 said:
WiFi disconnect problem i agree.
But loosing connection from 1-2 floors is not phones fault. Compared to other phones its range is quite low.
Click to expand...
Click to collapse
thought so too.
berezker said:
Yes, it did happen before and it was reconnecting between the 2.4 ghz and 5 ghz every 10-20 minutes for no reason
I disabled my 5 ghz network and stayed on 2.4 ghz since it's much more reliable
Btw, it did happen in both stock and custom roms
Click to expand...
Click to collapse
I might try to do the same and see it changes anything.
- I noticed that this (disconnect - reconnect) problem happens mostly when I'm viewing Youtube in Full screen mode, any other browsing or youtube in regular mode doesn't affect wifi unless I'm really far away from the router. I will do further testing and try different stuff in hope this gets better.
Thank you all for the replies.

berezker said:
I disabled my 5 ghz network and stayed on 2.4 ghz since it's much more reliable
Click to expand...
Click to collapse
I have the same problem on a stock device (with Android Pie): dual band Wi-Fi keeps disconnecting, unless I am within 3 m (10 feet) of the router.
Disabling the 5 GHz 802.11ac network solved the issue.

Still present. If I have LTE enabled, my phone will use the LTE instead of wifi all the time. So I keep my LTE off. That's my only solution. Xiaomi really f***ed up this phone..

Yep me too... Maybe it's because of the pie but when my screen is turned off the wifi automatically disconnects from the network also the wifi signal is poor compared to galaxy s4 which is a device from 2014...

Related

Nexus 4 ruins my home wi-fi !?

Every time i connect nexus 4 to my home wi-fi. Every other device gets terrible connection speed... Before nexus 4 my Nexus 7 had steady speeds up to 20mbps. With nexus 4 connected speeds go down to 5-3 mbps and even when i disconnect n4 from my home wi-fi router still acts really strange and i have to reboot it. Anybody experienced anything like that?
skyrocket727 said:
Every time i connect nexus 4 to my home wi-fi. Every other device gets terrible connection speed... Before nexus 4 my Nexus 7 had steady speeds up to 20mbps. With nexus 4 connected speeds go down to 5-3 mbps and even when i disconnect n4 from my home wi-fi router still acts really strange and i have to reboot it. Anybody experienced anything like that?
Click to expand...
Click to collapse
I have three desktop computers, an iPad, an iPod, a Roku unit, and two smartphones sharing the same wifi signal. My speeds don't seem to vary any regardless of the number of devices sharing it at any given time. I would have to call my service provider if I found myself in your situation.
Buddy3927 said:
I have three desktop computers, an iPad, an iPod, a Roku unit, and two smartphones sharing the same wifi signal. My speeds don't seem to vary any regardless of the number of devices sharing it at any given time. I would have to call my service provider if I found myself in your situation.
Click to expand...
Click to collapse
Yep, same.
To the op, I'd say either reboot the router (which you probably have done) and / or see if there's a firmware update for the router.
If no cure, call your internet provider.
Ok.. Forgot to mentioned that n4 also loses wifi connection from time to time.
Seems like im not the only one.. People post similar problems.
https://code.google.com/p/android/issues/detail?id=40065
my nexus has never dropped wifi connection to any router you may have hardware issues..
skyrocket727 said:
Ok.. Forgot to mentioned that n4 also loses wifi connection from time to time.
Seems like im not the only one.. People post similar problems.
https://code.google.com/p/android/issues/detail?id=40065
Click to expand...
Click to collapse
I have seen this before. It happens in mixed networks (old B laptop used to crash the WiFi AP when G clients were also connected).
1) Check for a firmware update to your router. This is most likely where your issue is. The router speed should drop and increase as needed, but buggy firmware may only keep in last slowest speed until a reboot.
2) Mixed encryption (WPA & WPA2) is a nightmare Force "WPA2 only with AES only" -or- "WPA only with TKIP only". Some clients may try to use WPA with AES and this was what was crashing my AP at the time.
3) If you still have issues, try using "G&N" only, or even force G only. Some older G clients don't hear N traffic, so they just transmit on top of it.
4) Last resort, look for a used router that can run DD-WRT firmware. Personally, I will never go back to OEM router firmware.
Hope this helps...
i used Wi-Fi Analyzer and it showed 2 really strong signals on the same channel.. one being mine and the other someone's else. i manually changed it from 11 to channel 5 and everything back to normal/// 20mbps just like before!
skyrocket727 said:
i used Wi-Fi Analyzer and it showed 2 really strong signals on the same channel.. one being mine and the other someone's else. i manually changed it from 11 to channel 5 and everything back to normal/// 20mbps just like before!
Click to expand...
Click to collapse
Guess your neighbour will be pleased too !:laugh:
Hi every one. I just got my N4 last week and i experiense the exact same thing!!!!
this is realy bad because every time i use the wireless network every body in the house starts complaining because my N4 shuts down all connections here.
It works alright with the main router wich is a thomson. but it fails with the other two routers (that are Belkin - N) that are only access points!
I realy want this fixed because not having internet at home is quite bad!

[Q] WiFi Disconnects

Hi, I'm having trouble with my N7 dropping WiFi signal. Not sure if it's related to android 4.2.2 or what. It was working a while ago, but now not so much. The wifi hangs - like when I'm in chrome a website will take way too long to load, and then a minute later it will load in like half a second. Or when I'm streaming netflix, I'll go for 5 minutes just fine. And then the next 5 minutes it will stutter every 2 seconds.
I'm really not sure what the deal is. Any ideas?
I've tried on a couple networks. I have an asus n66u router. I set up a separate network on the 2.4 ghz band all by itself just to see if it would improve performance. It hasn't. Most recently I tried using my phone a a wifi AP from about 3 inches away. Still the N7 stutters and drops the signal.
Any help would be appreciated thanks!
Sorry if this is in another thread. I tried searching but couldn't find anything similar.

5 ghz WiFi no Longer works 4.3?

I just setup a 5.0 ghz wifi router today. My nexus 4 doesn't seem to be able to connect to it now that I am running 4.3. I can see the ssid. I type in my password WPA2 and it reports saved under the network ssid. However no matter how many times I tap it, it never actually connects. I tried everything from restarting to flashing 4.3 again. Nothing helps.
I read several threads and reports about people experiencing slow speeds on 5 ghz after the 4.3 update but no one seems to mention not being able to connect at all. Some posts suggested that it works for them if they remove their router's password but I don't want to do that. I'm wondering if anyone has been able to use WPA2 and be on 4.3 successfully.
It's not a network or router issue. The router works perfectly with every other 5 ghz device that I have.
try changing the channel on the 5Ghz network, as some phones/tablets are quite fussy about what channel they work on!
lazer155 said:
I just setup a 5.0 ghz wifi router today. My nexus 4 doesn't seem to be able to connect to it now that I am running 4.3. I can see the ssid. I type in my password WPA2 and it reports saved under the network ssid. However no matter how many times I tap it, it never actually connects. I tried everything from restarting to flashing 4.3 again. Nothing helps.
I read several threads and reports about people experiencing slow speeds on 5 ghz after the 4.3 update but no one seems to mention not being able to connect at all. Some posts suggested that it works for them if they remove their router's password but I don't want to do that. I'm wondering if anyone has been able to use WPA2 and be on 4.3 successfully.
It's not a network or router issue. The router works perfectly with every other 5 ghz device that I have.
Click to expand...
Click to collapse
This just started happening to me as well. I was away from my normal WiFi networks for a couple weeks and also updated to 4.3 and had to reboot the phone once or twice. Now I can't connect to any 5 GHz networks. I've tried 3 different networks that were all set up on my phone previously. I've tried "forgetting" them, turning off WiFi and then turning it back on, rebooting the phone, no difference.
On some networks, my phone doesn't see the 5 GHz band at all and on others it shows up until I try to connect; then it disappears.
Android 4.3 just seems to be another piss-poor update in a tremendous string of crappy software "upgrades" for me: Win8, Intel Centrino 6235, Google Maps, Hangouts. Quite the string of bad luck. It's like the world is telling me I need to buy Apple...
Drop the channel down to 36. All shall work then. This issue is in the note 2 and note 8
As well.
Sent from my Nexus 4 using Tapatalk 2
hematose said:
This just started happening to me as well. I was away from my normal WiFi networks for a couple weeks and also updated to 4.3 and had to reboot the phone once or twice. Now I can't connect to any 5 GHz networks. I've tried 3 different networks that were all set up on my phone previously. I've tried "forgetting" them, turning off WiFi and then turning it back on, rebooting the phone, no difference.
On some networks, my phone doesn't see the 5 GHz band at all and on others it shows up until I try to connect; then it disappears.
Android 4.3 just seems to be another piss-poor update in a tremendous string of crappy software "upgrades" for me: Win8, Intel Centrino 6235, Google Maps, Hangouts. Quite the string of bad luck. It's like the world is telling me I need to buy Apple...
Click to expand...
Click to collapse
yeah wait till tomorrow.. you might well see a "crappy updrage" of apple...
OP: changing channles fixed it for me..
Same boat. Tried low and high channels. It does see it. CM10.2.
In my case I do not see 5 ghz network at all. I set it to be on chanell 44 (20 Mhz), no security - still the same issue.
Also I realized, that even if in Wifi Advanced setting I set "5 ghz only" I still see 2.4 chanells.
I am running latest stock 4.3, no root.
4.2.2 same config worked ok.
5 GHz works fine for me. Do radio firmwares also effect Wi-Fi and Bluetooth?
Sent from my Nexus 4 using xda app-developers app
I was having the issue. None of my devices were connecting. All on 4.3. But I rebooted the router and it's been all good since. It may have changed its channel though. It's set to auto channel. But all my devices connect no problem. Using 40mhz and n only since AC not supported on nexus 4.
Sent from my Nexus 4 using XDA Premium 4 mobile app
lopezk38 said:
5 GHz works fine for me. Do radio firmwares also effect Wi-Fi and Bluetooth?
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
I'm pretty sure it's the kernel, unless LG does it differently than HTC.
lopezk38 said:
5 GHz works fine for me. Do radio firmwares also effect Wi-Fi and Bluetooth?
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
What happening if you go to wifi settings , advanced and select Wifi Band - 5 ghz only ? Do you still see 2.4 AP's ? In my case, I do. In 4.2.2 I did not.
polzovotel said:
What happening if you go to wifi settings , advanced and select Wifi Band - 5 ghz only ? Do you still see 2.4 AP's ? In my case, I do. In 4.2.2 I did not.
Click to expand...
Click to collapse
I see only 5 GHz APs
lopezk38 said:
I see only 5 GHz APs
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Click to collapse
Interesting - as I am still get 2.4 AP's. I used a factory default images for JWR66Y to un-root and get full stock (only bootloader remains unlocked).
And even with full stock , un-rooted I got the same problem. I was using Purity ROM with Franco kernel before that - with the same problem.
polzovotel said:
Interesting - as I am still get 2.4 AP's. I used a factory default images for JWR66Y to un-root and get full stock (only bootloader remains unlocked).
And even with full stock , un-rooted I got the same problem. I was using Purity ROM with Franco kernel before that - with the same problem.
Click to expand...
Click to collapse
I did some more tests, and I found that immediate after reboot, I can see my 5Ghz network AP, even connect to it.
However, after few hours it was inaccessible. Also, nerveless what I do, if I select to use only 5Ghz band I still see 2.4Ghz AP's. No idea why.
Both my N4 and my N7 (2013) won't connect to my router when it is using WPA encryption. My N10 is fine though. I have had to lower encryption on one frequency band to WEP - which I'd rather not do, but it is the only way I could get it to connect.
It seems sensitive to brands of router, as both devices connect to my work network fine and that also uses WPA encryption.
My home router is a TP-Link Archer C7.
Sent from my Nexus 4 using xda app-developers app
Hi,
I have this issue logged with Google at the moment regarding the 5Ghz issue. They are fully aware of it and say numerous customers have been affected - their original solution to me was to downgrade to 4.2 and lose my warranty. When I said won't do that they offered RMA which 2 weeks later I'm still waiting for them to sort.
According to Google just because other devices work on 5Ghz doesn't mean the Nexus 4 will, so I can't how they can sell it stating it works with 5Ghz when it doesn't.
Also have post here
update: received my replacement phone on 21/09/13 and this is running 4.2.2 and connects to my 5Ghz without any issues - done a side-by-side video of the faulty phone running 4.3.3 and sent this to Google - I have told them it was working fine before update

[Q] G2 WiFi speeds N+AC

Does anyone notice there's a big bug with WiFi on the G2?
I have 2 WiFi ac routers, one at home and one at the Office, an Asus RT-ac66U and a Linksys ea6700. Both capable of 1750mbps max speeds.
Internet speeds are 120/6 and 200/20.
Scenario is exactly the same for both routers;
When fresh reboot the router, G2 connects at a speed of 433Mbps.
Speedtests show results of 119/6 at home and 190/20 at the office.
Great you would say!
But here goes. Once WiFi get disconnected and reconnected, speeds go down to ~40mbps. No matter what I do!
These are N speeds, not AC
When looking at connection settings it still shows a link of 433mbps
Tested dozens of times, on both routers, so it has to be an issue with the G2.
Anyone else noticed the same??
DAMN, should have been in Q&A, mods plz move
I'm not an expert on wi-fi, but have stumbled through setting up several routers around the house. But I do not have an ac router.
Is the home router in mixed mode? Ignoring a/b/c for a moment and focusing on g and n (and implying ac), I have two wireless routers in the house. One runs N only (but both 2.4 ghz and 5 ghz) and the other runs G only. Now, my N router is capable of running in mixed mode (to handle both N and G) BUT in mixed mode, my max speed when connected in N is lower than it would be if I ran in dedicated N mode.
Most of my devices now are at least N (2.4 or 5) but I have an older printer and wii that only do G. But as mentioned above, rather than run my best router in mixed mode, I run 2 separate routers, one in N only and one in G only.
Maybe something similar might help with your ac speeds?
Really appreciate your input!
But I already tried settings like AC only etc. Doesn't make any difference.
Once connected for the second time and up to the router no more AC speeds...
Sent from my LG-D802 using XDA Premium 4 mobile app
Is there a way to test LAN speeds on Android? I have the same Asus router but my wan speeds are so pitiful that I wouldn't be able to tell if the phone was dropping to N speeds. If I could test speeds to my desktop across the local network I might be able to test what you are experiencing.
Sent from my VS980 4G using Tapatalk
Is there a way to check on the phone, which band it's connecting to? I haven't found anything.
I have the same router and my issue is on reconnect. I leave my wifi on all the time. When I get home, it connects automatically the moment I pull up to the house. The problem is, the speed is severely crippled. Range is awesome, speed is bad. I have to cycle the wifi and reconnect. Once done, no more problems.
One thing I should note, I was having the same issue occasionally on my Droid RAZR after getting the ASUS. Does anyone know if they use the same wifi hardware? Maybe it's an issue with the router itself?
jasonsf said:
Is there a way to test LAN speeds on Android? I have the same Asus router but my wan speeds are so pitiful that I wouldn't be able to tell if the phone was dropping to N speeds. If I could test speeds to my desktop across the local network I might be able to test what you are experiencing.
Sent from my VS980 4G using Tapatalk
Click to expand...
Click to collapse
crashN2u said:
Is there a way to check on the phone, which band it's connecting to? I haven't found anything.
I have the same router and my issue is on reconnect. I leave my wifi on all the time. When I get home, it connects automatically the moment I pull up to the house. The problem is, the speed is severely crippled. Range is awesome, speed is bad. I have to cycle the wifi and reconnect. Once done, no more problems.
One thing I should note, I was having the same issue occasionally on my Droid RAZR after getting the ASUS. Does anyone know if they use the same wifi hardware? Maybe it's an issue with the router itself?
Click to expand...
Click to collapse
@jasonff
Don't know about an app to test lan speeds unfortunately.
Think a google search would come up with lots of options.
@crashN2u
I leave my wifi on too all the time for now, it keeps it at full speed then.
There's no way to check which band you are connected to.
Router doesn't have an option to choose AC Only, only N +AC
And in the mean time I have tested it with 4 AC routers, Asus RT-AC66U, Netgear R6250, Linksys EA6700, D-Link 868L.
With all routers exactly the same conclusion. First time everything is great. Excellent speeds. If you never turn off WiFi it remains at high speed.
But once you turn off WiFi on the Phone and turn it back on it immediately drops to ~36-40mbps max (N Speeds).
This remains until I rebooted each router and after that full speeds again.
It must be something in drivers LG used.
There's the solution to for, I'm sure of it by now.
Well, I can see I won't be much help -- especially since the same result on 4 routers!
I am not sure if the following app supports AC, but a very helpful and free app I use is called "Wifi Analyzer". I can't post links but that is the exact name (author = farproc).
It has many useful tools/functions that you may find helpful, switchable between 2.4 and 5.0 ghz, channel scanner, etc.
Does your 2.4 ghz N and 5.0 ghz N/AC have different SSID's? From what I read, AC is 5 ghz only and N can be either 2.4 ghz or 5.0 ghz. I wonder if you are dropping from 5.0 AC to 2.4 N because the 2.4 N is being detected as "stronger signal" than the 5.0 AC at reconnect time?
I named my 2.4 ghz N SSID as "Blah" and 5.0 ghz N SSID as "Blah_5ghz" just so I know what frequency I'm on at a glance (using a widget that shows the SSID) but many routers by default will have both SSID's the same, making it less obvious what band you are connected to. I also use an app called "WIFI Prioritizer" (author Robert Botha), which will allow me to connect or re-connect in the SSID order I specify: i.e. when I get home I will connect to SSID "Blah" (2.4 ghz N because it has the longest range). Every 5 mins (you can specify), it checks to see if my SSID "Blah_5Ghz" is in range and will switch to it if it is (you can also set signal strength connect and disconnect thresholds).
Anyways, I probably can't help further but am following this thread with interest. Good luck!
Klotar said:
Well, I can see I won't be much help -- especially since the same result on 4 routers!
I am not sure if the following app supports AC, but a very helpful and free app I use is called "Wifi Analyzer". I can't post links but that is the exact name (author = farproc).
It has many useful tools/functions that you may find helpful, switchable between 2.4 and 5.0 ghz, channel scanner, etc.
Does your 2.4 ghz N and 5.0 ghz N/AC have different SSID's? From what I read, AC is 5 ghz only and N can be either 2.4 ghz or 5.0 ghz. I wonder if you are dropping from 5.0 AC to 2.4 N because the 2.4 N is being detected as "stronger signal" than the 5.0 AC at reconnect time?
I named my 2.4 ghz N SSID as "Blah" and 5.0 ghz N SSID as "Blah_5ghz" just so I know what frequency I'm on at a glance (using a widget that shows the SSID) but many routers by default will have both SSID's the same, making it less obvious what band you are connected to. I also use an app called "WIFI Prioritizer" (author Robert Botha), which will allow me to connect or re-connect in the SSID order I specify: i.e. when I get home I will connect to SSID "Blah" (2.4 ghz N because it has the longest range). Every 5 mins (you can specify), it checks to see if my SSID "Blah_5Ghz" is in range and will switch to it if it is (you can also set signal strength connect and disconnect thresholds).
Anyways, I probably can't help further but am following this thread with interest. Good luck!
Click to expand...
Click to collapse
My Phone is packed with tools like Wifi Analyser, InSISDer etc etc atm
I always separate 2.4 and 5ghz networks to be able to see exactly what's going on but thanks for the heads up :good:
From further investigation and thinking, and with your suggestion about stronger signals;
Thing is, AC routers are more or less all simultanious routers.
That combines 2.4 and 5ghz signals for higher transfer speeds.
I think in there lies the problem when drivers are not 100%.
In theory 2.4 signals are stronger then 5ghz signals and have wider range.
But in testing I made sure that I was in the same room and no more than 2 meters away from the router.
when testing it showed equal signal strength up to -20 so really strong signals.
Therefore I concluded that N on 2.4 whas equally strong as 5ghz and then again I isolated 5ghz SSID so that's not it unfortunately.
I promised to stay away but I can't resist!
Have you tried some of the more generic troubleshooting tips (on the home network), such as trying with no security or lesser security (WEP) to see if it still reconnects at the lower (N) speeds? I realize that usually that test is of course for a more basic issue than yours but maybe the G2 has trouble handling security overhead.
Some devices and routers just don't like each other (as many know), but 4 different routers...?! Gotta be the G2 side, as you've surmised. Wish I knew someone with an ac router so I could test myself. I'm debating on getting an ac router but you've got me spooked! (kidding/teasing)
Well haven't tried lower or no security.
When I have the chance (aka the wife is away and not *****ing about wifi not available ) I'll sure try that.
But I don't think that WEP will be an option because AC requires AES protection if I'm not mistaken.
But really do not be afraid to get yourself an AC router hehe.
No honestly, I've tested 4 routers with:
AC Capable:
HTC One. Goes all the way to max isp speeds. All the time, no issues
LG G2.
Not AC Capable.
IPhone 5. Max speed at 5ghz (constantly tested) is ~90-100mpbs.
HTC One X. Max speed at 5ghz (constantly tested) is ~70-90mpbs.
So even if your hardware maybe not be capable of AC speeds you still get excellent connections
Oh and for the record.
Here's my personal listing of the hardware I've tested. From best to well not so good.
1. Netgear R6250.
Excellent constant speeds. No drops whatsoever with around 6 devices connected. Excellent range!
2. Asus RT-AC66U
Shame Asus introduced a new wifi driver some time ago which doesn't perform that well. Constant speed drops.
They know about it but thusfar no solution.
When you get this one, stay on old firmware for now!
3. D-link 868L
Real looker this one. Can be put in plain sight in the room like a picture frame :silly:
Great constant speeds, but some drops here and there.
Excellent range.
4. Linksys EA6700
Linksys is sold to Belkin by Cisco.
Up to now I have never seen anything good coming from Belkin!
What a piece of crap.
With a really thin wall between router and phones coverage went down more dan half. Hell even when distance less than 2 meters away coverage was about -45.
Do not get this crap!
I wonder... the wireless N spec (not sure if also AC) calls for devices and routers to have a 'low power mode', which may or may not be enabled in routers and/or phones (e.g. GS3) by default. According to some article I read, newer routers may go into a power saving mode if it detects low traffic and supposedly ramp up when the traffic increases.
Possibly it doesn't ramp up fast enough when a new device connects and the device mistakes it for not having the highest speed (AC) capability. Might explain fast speeds after router bootup but not later. If there is any truth to that (no clue here), it might speed itself up either by testing with a larger file or seeing if the "2nd connect" condition changes while say, streaming videos from the PC to the Xbox or watching Netflix on the main TV. Certainly, either would be considered high traffic and if there is no change to the 2nd connect, well -- there goes that idea.
Is there a wifi power saving mode on the G2 like there is on the GS3? (i.e. dialing *#0011# to turn it off).
Klotar said:
I wonder... the wireless N spec (not sure if also AC) calls for devices and routers to have a 'low power mode', which may or may not be enabled in routers and/or phones (e.g. GS3) by default. According to some article I read, newer routers may go into a power saving mode if it detects low traffic and supposedly ramp up when the traffic increases.
Possibly it doesn't ramp up fast enough when a new device connects and the device mistakes it for not having the highest speed (AC) capability. Might explain fast speeds after router bootup but not later. If there is any truth to that (no clue here), it might speed itself up either by testing with a larger file or seeing if the "2nd connect" condition changes while say, streaming videos from the PC to the Xbox or watching Netflix on the main TV. Certainly, either would be considered high traffic and if there is no change to the 2nd connect, well -- there goes that idea.
Is there a wifi power saving mode on the G2 like there is on the GS3? (i.e. dialing *#0011# to turn it off).
Click to expand...
Click to collapse
Good point!
Well, there is a setting in wifi, advanced to minimize use of wifi when screen is off. Sounds like a power save mode to me.
But, just tested it and that makes no difference.
With that setting deactivated on the G2 still at first boot AC speeds and when I switch off and on wifi I still get N speeds max.
And besides that, on the Asus router there's a setting called "Enable WMM APSD". Which stands for "Automatic Power Save Delivery".
I read up on that and the custom firmware guru RMerlin writes about that setting that especially Android devices could suffer from that setting.
So I disabled that a long time ago.
On other routers I couldn't find such setting.
But to iron that setting out I just tested it once more.
First with setting off. Still first connect AC speeds, after turn off/on back to N speed.
Then turned wifi off, enabled the setting and rebooted the router.
But this time to let the supposedly power save kick in I let my Phone idle for 15 minutes so that it surely was in deep sleep.
Then turned screen on, and again AC speeds when first connected.
After that turned wifi off, screen of for 15 minutes. Turned screen on again and once more N speed.
And link speed is always shown as 433mbps btw, which is correct.
There's just some bug in driver code by LG which doesn't work correctly.
I'm more and more convinced of that.
For now I just keep wifi on all the time so that I always get full speeds.
Batt is capable enough so no problem there
LittleH79 said:
Good point!
Well, there is a setting in wifi, advanced to minimize use of wifi when screen is off. Sounds like a power save mode to me.
But, just tested it and that makes no difference.
With that setting deactivated on the G2 still at first boot AC speeds and when I switch off and on wifi I still get N speeds max.
And besides that, on the Asus router there's a setting called "Enable WMM APSD". Which stands for "Automatic Power Save Delivery".
I read up on that and the custom firmware guru RMerlin writes about that setting that especially Android devices could suffer from that setting.
So I disabled that a long time ago.
On other routers I couldn't find such setting.
But to iron that setting out I just tested it once more.
First with setting off. Still first connect AC speeds, after turn off/on back to N speed.
Then turned wifi off, enabled the setting and rebooted the router.
But this time to let the supposedly power save kick in I let my Phone idle for 15 minutes so that it surely was in deep sleep.
Then turned screen on, and again AC speeds when first connected.
After that turned wifi off, screen of for 15 minutes. Turned screen on again and once more N speed.
And link speed is always shown as 433mbps btw, which is correct.
There's just some bug in driver code by LG which doesn't work correctly.
I'm more and more convinced of that.
For now I just keep wifi on all the time so that I always get full speeds.
Batt is capable enough so no problem there
Click to expand...
Click to collapse
I found a tool to test local network speed. It uses two android devices for a p2p test or you can install a server program on your PC. I'll do some testing and see if I can reproduce what you are seeing. Here's the link: http://pzoleeblogen.wordpress.com/2013/08/12/local-network-speed-test-for-android/ and the market link: https://play.google.com/store/apps/details?id=com.pzolee.android.localwifispeedtester&hl=en
And to be sure I understand, you boot your phone with wifi on, AC speeds. Turn off wifi on phone and turn it back on, N speeds. Reboot phone with wifi on, back to AC speeds. Correct?
jasonsf said:
I found a tool to test local network speed. It uses two android devices for a p2p test or you can install a server program on your PC. I'll do some testing and see if I can reproduce what you are seeing. Here's the link: http://pzoleeblogen.wordpress.com/2013/08/12/local-network-speed-test-for-android/ and the market link: https://play.google.com/store/apps/details?id=com.pzolee.android.localwifispeedtester&hl=en
And to be sure I understand, you boot your phone with wifi on, AC speeds. Turn off wifi on phone and turn it back on, N speeds. Reboot phone with wifi on, back to AC speeds. Correct?
Click to expand...
Click to collapse
Thanks for the app!
Gonna test this for sure since I also have a HTC One lying around which is also AC capable
Not 100% corect.
I can do with phone what I want until wifi gets turned off.
Then a reboot of the router is required to get AC speed back.
No need to reboot the phone.
Quite busy atm so don't have enough time I would like to be testing
LittleH79 said:
Thanks for the app!
Gonna test this for sure since I also have a HTC One lying around which is also AC capable
Not 100% corect.
I can do with phone what I want until wifi gets turned off.
Then a reboot of the router is required to get AC speed back.
No need to reboot the phone.
Quite busy atm so don't have enough time I would like to be testing
Click to expand...
Click to collapse
Between my wife on her laptop, my son on his Chromebook and my daughter streaming Netflix on our Roku, I hardly ever have a chance to reboot the router without someone complaining
Since I haven't rebooted my router in days, from what you are saying I shouldn't see anything above N speeds until I reboot the router. Do you actually have to turn off wifi on the phone to have it drop from AC to N or is it enough to leave the range of the wifi and then come back? And does if turning it off is required, do I have to be connected to the router at the time I turn phone wifi off?
I'll try testing this weekend.
jasonsf said:
Between my wife on her laptop, my son on his Chromebook and my daughter streaming Netflix on our Roku, I hardly ever have a chance to reboot the router without someone complaining
Since I haven't rebooted my router in days, from what you are saying I shouldn't see anything above N speeds until I reboot the router. Do you actually have to turn off wifi on the phone to have it drop from AC to N or is it enough to leave the range of the wifi and then come back? And does if turning it off is required, do I have to be connected to the router at the time I turn phone wifi off?
I'll try testing this weekend.
Click to expand...
Click to collapse
Going out of range isn't a problem as long as you don't have an app or setting on in wifi, advanced to switch off wifi.
As long as wifi isn't turned off I can go everywhere, in&out of range, other routers connect but speeds remain AC, everywhere on every router.
I can reproduce everytime that when I turn off wifi on the phone and back on from then on I only get ~36-40mbps max.
It's like the phone thinks that's max capable speed altough wifi link speed is again shown as 433mbps.
If I have switched off wifi on the phone and back on, on all 4 AC routers I tested all needed a router reboot to gain full AC speeds again.
Oh and maybe a small tip, I always say to the misses at home that there's a small problem with connection so a quick reboot is required.
Up to now that still works
LittleH79 said:
Going out of range isn't a problem as long as you don't have an app or setting on in wifi, advanced to switch off wifi.
As long as wifi isn't turned off I can go everywhere, in&out of range, other routers connect but speeds remain AC, everywhere on every router.
I can reproduce everytime that when I turn off wifi on the phone and back on from then on I only get ~36-40mbps max.
It's like the phone thinks that's max capable speed altough wifi link speed is again shown as 433mbps.
If I have switched off wifi on the phone and back on, on all 4 AC routers I tested all needed a router reboot to gain full AC speeds again.
Oh and maybe a small tip, I always say to the misses at home that there's a small problem with connection so a quick reboot is required.
Up to now that still works
Click to expand...
Click to collapse
I just did a few tests from my phone to my pc with 100MB data sets. I got between 200 and 260 Mbit/s down both before and after toggling my phone's wifi off and on. Didn't seem to make a difference. I got about 6Mbit up.
So, I didn't seem to experience the problem you have. But try repeating what I've done with this local network app. Maybe you won't have the issue with it that you are seeing on your WAN connection.
jasonsf said:
I just did a few tests from my phone to my pc with 100MB data sets. I got between 200 and 260 Mbit/s down both before and after toggling my phone's wifi off and on. Didn't seem to make a difference. I got about 6Mbit up.
So, I didn't seem to experience the problem you have. But try repeating what I've done with this local network app. Maybe you won't have the issue with it that you are seeing on your WAN connection.
Click to expand...
Click to collapse
What router or AP do you use?
/s
shaglord said:
What router or AP do you use?
Click to expand...
Click to collapse
Asus RT-AC66U
jasonsf said:
Asus RT-AC66U
Click to expand...
Click to collapse
Wow and do you really see real transfer rates of 25-30 MB/s to your G2?
I'm using a Qualcomm Atheros based AC-router and my G2 (running latest CM11) hardly goes over 10 Mbit ~ 1,5 MB/s. Weak I know. (Confirmed 433 Mbit link using a wifi app.)
Maybe I need a broadcom-router like yours to see some real AC-speeds.
Thanks for the reply. Take care
/s

Wifi disconnects and reconnects constantly

Hi,
just had the phone for an hour and almost right away after first setup the wifi radio disconnects/turns off and re-connects/turns on automatically every 20 seconds or so. No matter wich network I try.
Working fine with my S7 Edge laying here beside me, never had problems. I have three different networks around me I can try out.
Anyone had the same problem? I can find som info about this exact issue for the S7 Edge for some, but no solution from that works on the S8..
N
this is an old problem S7 had
you need to toogle in settings > connectivity > wifi > advance > smart network swithc OFF
i think this was - but dont remember well since it was a while ago - but basically you need to turn off the option of phone switching between phone and wifi data
Having the exact same problem with my Ubiquity wifi network (ie, not some janky cable company router) with my just-booted up S8. Smart switch was off by default, and after switching it 'on' and back 'off', no change.
This was the first thread I found on the topic, will update with any solutions.
gsxrjjordan said:
Having the exact same problem with my Ubiquity wifi network (ie, not some janky cable company router) with my just-booted up S8. Smart switch was off by default, and after switching it 'on' and back 'off', no change.
This was the first thread I found on the topic, will update with any solutions.
Click to expand...
Click to collapse
Make sure hotspot2.0 is off
Sent from my SM-G950U using XDA Labs
EvoTillIdIE said:
Make sure hotspot2.0 is off
Sent from my SM-G950U using XDA Labs
Click to expand...
Click to collapse
Yup, Hotspot 2.0 is off for me. I've restarted the phone and the wifi access point, and my Note 5 and S7 are working fine lol. Super weird!
EvoTillIdIE said:
Make sure hotspot2.0 is off
Click to expand...
Click to collapse
Many of those switches doesn't exist in my s8.
Incl hotspot.
pickles76 said:
Hi,
just had the phone for an hour and almost right away after first setup the wifi radio disconnects/turns off and re-connects/turns on automatically every 20 seconds or so. No matter wich network I try.
Working fine with my S7 Edge laying here beside me, never had problems. I have three different networks around me I can try out.
Anyone had the same problem? I can find som info about this exact issue for the S7 Edge for some, but no solution from that works on the S8..
N
Click to expand...
Click to collapse
Probably means you have virgin broadband like me ?
choccy31 said:
Probably means you have virgin broadband like me ?
Click to expand...
Click to collapse
Well I'm in Sweden and have no operator dependence. Neither for mobile or my home network (fiber connection owned by me).
This sucks though... I want this resolved
pickles76 said:
Well I'm in Sweden and have no operator dependence. Neither for mobile or my home network (fiber connection owned by me).
This sucks though... I want this resolved
Click to expand...
Click to collapse
Try downloading wifi analysis app and see what it's picking up. Maybe you could try changing your wifi channel if it looks low?
choccy31 said:
Try downloading wifi analysis app and see what it's picking up. Maybe you could try changing your wifi channel if it looks low?
Click to expand...
Click to collapse
No this has nothing to do with the routers or access points. I am 3 meters from the AP, its at 100% signal rate etcetera..
This has to do with Samsung and the software.
pickles76 said:
No this has nothing to do with the routers or access points. I am 3 meters from the AP, its at 100% signal rate etcetera..
This has to do with Samsung and the software.
Click to expand...
Click to collapse
Download the wifi analysis app and see what the phone picks up.
Also in wifi settings on phone disable sleep mode and put to always on!
choccy31 said:
Download the wifi analysis app and see what the phone picks up.
Also in wifi settings on phone disable sleep mode and put to always on!
Click to expand...
Click to collapse
As I wrote I've tried all that I'm afraid. All the things that was recommended for the trouble on the s7.
have u tried going to a free wifi spot (starbucks, mcdonalds) see if the issue persists - maybe is your router refusing connection
tim2london said:
have u tried going to a free wifi spot (starbucks, mcdonalds) see if the issue persists - maybe is your router refusing connection
Click to expand...
Click to collapse
As I wrote I have three different wifi to test with but yes makes no difference. This is a well known but not solved problem with Samsung phones.. three different makes of manufacturers, different settings with a/b/g/n and all show the same problems.
I also installed the small new update today for the firmware. Still same problem.
I'm guessing I'm about to get a replacement phone. I'll try that on Monday.
I'm not seeing the same problems with public wifi as I am with my Ubiquity Unify AC AP Pro access points at home - definitely weird.
When it is connected, I'm getting my usual 100mbps speeds, but it continues to drop regularly (not the every 10secs it did when I first powered it on, but every minute or so).
One thing that was mentioned was changing channel bandwidth from '40' to '20'... I don't see anywhere to do that on the S8?
gsxrjjordan said:
I'm not seeing the same problems with public wifi as I am with my Ubiquity Unify AC AP Pro access points at home - definitely weird.
When it is connected, I'm getting my usual 100mbps speeds, but it continues to drop regularly (not the every 10secs it did when I first powered it on, but every minute or so).
One thing that was mentioned was changing channel bandwidth from '40' to '20'... I don't see anywhere to do that on the S8?
Click to expand...
Click to collapse
Doesn't that mean on your router?
By changing the broadcast bandwidth from 40 to 20 you will increase the signal produced (same power is covering less channels)
Sent from my HTC One_M8 dual sim using XDA-Developers Legacy app
I had this happen on a UniFi UAP-AC-Pro network with my S8 as well. I turned off Nearby Device Scanning on the S8 under Settings-> Connections -> More Connection Settings and that seemed to fix it. Strangely, I did not have the issue on my home network which has a single UAP-AC-LR access point with an otherwise similar configuration. Not sure if this setting change was really a fix, or if I just temporarily got lucky.
If turning off Nearby Device Scanning doesn't work for anyone, it might be worth playing with other settings within your network such as Band Steering. Some of these require turning on advanced features within the UniFi controller. Also I would be curious to hear whether those who have issues are on networks with a single access point, or larger installs with multiple access points.
Very recently got the Samsung S8 and I'm having some wierd WiFi issues. When connecting to the network everything is fine i get almost maximum download/upload speeds(500/500) from my UniFi AP-AC-PRO. But after being connected for awhile 30-60mins the speed drops to around 30mbit downstream and upload around 200mbit. If i disconnect from the Wi-Fi and instantly reconnect i get full speed again. I've tried switching settings in the ap, went from everything on auto settings to static channel/transmit power and been trying vht40/80 but makes no difference. If i have smart network switching on i get disconnected and put on LTE instead. All my other devices have blazing WiFi speeds as usual. I'm gonna try turning of nearby device scanning and see if that helps.
I started a thread in the ubiquiti UniFi forum as well but i cant link that here(not enough posts on this xda account)
izeen said:
Very recently got the Samsung S8 and I'm having some wierd WiFi issues. When connecting to the network everything is fine i get almost maximum download/upload speeds(500/500) from my UniFi AP-AC-PRO. But after being connected for awhile 30-60mins the speed drops to around 30mbit downstream and upload around 200mbit. If i disconnect from the Wi-Fi and instantly reconnect i get full speed again. I've tried switching settings in the ap, went from everything on auto settings to static channel/transmit power and been trying vht40/80 but makes no difference. If i have smart network switching on i get disconnected and put on LTE instead. All my other devices have blazing WiFi speeds as usual. I'm gonna try turning of nearby device scanning and see if that helps.
I started a thread in the ubiquiti UniFi forum as well but i cant link that here(not enough posts on this xda account)
Click to expand...
Click to collapse
I'm having the exact same problem as you. Wifi connects at full speed at first, then after a while speed drops. Has gone down to 1Mbps numerous times. Disconnecting then reconnecting fixes it for a while then it starts all over again. I'm connected to a TP-Link AC1900 running dd-wrt. May try going back to stock firmware on the router to see if that helps.
So has anyone come up with a permanent solution to this? I'm in the same boat with my ac-ap-pro and s8+. Disconnects every 20 seconds or so.

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