WiFi 2.4GHz vs 5GHz Power Consumption - Galaxy Note 4 Q&A, Help & Troubleshooting

I have been researching on Power Consumption between 2.4GHz and 5GHz WiFi. the reason for that is my Exynos N910C seems to drain so much battery when it's on 5GHz WiFi during stand-by / sleep. And of course drains even more when in use.
My set up:
1. Asus RT-AC87U, WPA2, 2.4Ghz and 5GHz, SSID names are differentiated between the 2 bands, eg. WiFi and WiFi 5G.
2. Router placed on the Ground Floor around the back of the house. My Room is upstairs around the front of the house.
3. WiFi Signal strength: 2-3 bars for 2.4Ghz, 1-2 bars for 5Ghz.
4. Phone is not rooted, everything stock, latest firmware, bloatware disabled, only GMail Auto Sync, and WhatsApp running.
5. Phone has been Factory Reset and even reflashed with the latest firmware.
6. Under WiFi's Settings, I unchecked Smart Switch and under Advanced settings, I pretty much unchecked everything in there.
7. Under *#0011#, WiFi is set to Power Save ON.
This setup drains around 1-1.5hr per battery % on 2.4GHz (logged with Battery Monitor Widget) but 20-30 minutes per battery % when on 5Ghz.
At first I though, it could be because the signal is weak in my room, so I bought RP-AC52 and configured it as an Access Point (not as a Repeater) in my room. Once set up was completed, both WiFi band signal are now at full bar so I went to test it again..... but the battery drain rate remains the same! The phone is just 1.5 meters away from the Rp-AC52 Access point.
I've looked up on articles regarding the power consumption between the 2, they keep saying they should be the same, but it is clearly not at least on my phone.
Could anyone test 5GHz WiFi power consumption please and see if it's just me? Thank you in advance.

Higher frequency always means higher consumption.

Lodix said:
Higher frequency always means higher consumption.
Click to expand...
Click to collapse
I kinda figured that part, but 3x the power consumption vs 2.4GHz? And I'm sure alot of people here with dual band routers prefer 5GHz, but I wonder if they are aware it's such a battery hog compared to 2.4Ghz... or even 4G.

A late answer here but if someone is searching in the thread.
On the 5 GHz band of the AC87U, I cannot seem to get the powersave mode of wifi to work, which would explain why the draining is so high.

My experience of using 5ghz on my Snapdragon, is that it would always disconnect when the phone was asleep, even if I had always on. When I unlocked the screen it would take some seconds, then it would connect again to the WiFi. So I'm only using 2.4ghz now.

I have never had any problems with 5Ghz on the Note 4 Snapdragon. The last time I checked I think it drained around 1%/hour, maybe less. The fact I'm using FreedomPop on it though does really hurt the battery for obvious reasons (constant VoIP connection).
I wish Google Apps were less aggressive though. I have my old Optimus 3D as a backup phone with an extended battery and gets 14 days WiFi off, 7 days WiFi on with Google apps signed out, only a couple of days with it signed in.

ShadowFlare said:
I kinda figured that part, but 3x the power consumption vs 2.4GHz? And I'm sure alot of people here with dual band routers prefer 5GHz, but I wonder if they are aware it's such a battery hog compared to 2.4Ghz... or even 4G.
Click to expand...
Click to collapse
Pixel 4A
Same. I guess you know by now why that happens. Reasons are DHCP timer, AP balancing, server side software bug, interference, ARP flooding and Wifi Multicast.
I have spent past few weeks scouring through the internet and finally learned about them all one by one.

Related

[Q] Wifi on - power consumption too high

I've noticed that the Note uses way too much power when I'm using the phone with Wifi-on vs when using it with 3G on, like 2 times more power.
I wonder if it's the wifi chip used in the Note or my wifi router at home (Tp-link 1043ND 300mbs N class router, 11b/g/n auto channel, auto 20/40mhz)
Same with stock rom, cassie's and rocket rom.
B/c of this I've started using the 3G access even at home, but I'd prefer to use wifi.
Anyone can fill in on this matter?
have same router, but I doubt it's cause of it.
With my dell streak I would lose around 3% battery overnight with wifi on, with the gnote I lose around 10%.
Really sucks.
I got this program, wifi TX power, but still din make test to see if can it works on the gnote to reduce wifi antenna battery usage.
some router seem to have problem in battery drain for wifi. 2wire have this problem too . best way is disable wifi when you are not using?
I've noticed something, don't know if it helps though. After connecting to a wifi router, go into settings --> wireless and networking --> wifi settings (the tab where you view the available wifi networks).
On stock 2.3.6 KK5 even if i am connected to a router it keeps scanning continuously for other wifi hotspots (look for the little circle on the right). I found no option to disable auto scanning. I have notify for open networks disabled. I don't see the same effect on my X10.
Any ideas if that causes the drain?
Edit: I've emailed samsung about the above mentioned in this post. Hopefully they will clear this up.

[Q] awful Nexus 10 wifi speeds

First time poster here. I've searched all the threads and couldn't find anything on my specific issue.
Had the Nexus 10 for about a week and noticed streaming YouTube and movies was EXTREMELY slow. Slower than my Galaxy Nexus on the same WiFi network (my network speed is about 18-20 Mbps). I finally did a speed test and noticed that my 10 was getting awful results...sometimes 3-6 Mbps while sometimes it'd get up to 10-13. My Galaxy Nexus gets between 14-18 Mbps consistently. For my 10, every speed test fluctuates between 3 to 13 and it's just so inconsistent.
Now, I don't have any connectivity issues. It never drops the signal and I'm always connected, it just goes super slow to the point of YouTube videos not loading.
I'm not a wizz, but I use ATT uverse and use the router they give you. I'm not sure if it's a router issue or a Nexus issue.
I've restarted the nexus, turned off the WiFi optimization and turned the WiFi off and on. I had a ton of issues with my nexus 7 (main reason I switched to 10) and I really don't want to ship the device back to Google. Any suggestions??
boweman55 said:
First time poster here. I've searched all the threads and couldn't find anything on my specific issue.
Had the Nexus 10 for about a week and noticed streaming YouTube and movies was EXTREMELY slow. Slower than my Galaxy Nexus on the same WiFi network (my network speed is about 18-20 Mbps). I finally did a speed test and noticed that my 10 was getting awful results...sometimes 3-6 Mbps while sometimes it'd get up to 10-13. My Galaxy Nexus gets between 14-18 Mbps consistently. For my 10, every speed test fluctuates between 3 to 13 and it's just so inconsistent.
Now, I don't have any connectivity issues. It never drops the signal and I'm always connected, it just goes super slow to the point of YouTube videos not loading.
I'm not a wizz, but I use ATT uverse and use the router they give you. I'm not sure if it's a router issue or a Nexus issue.
I've restarted the nexus, turned off the WiFi optimization and turned the WiFi off and on. I had a ton of issues with my nexus 7 (main reason I switched to 10) and I really don't want to ship the device back to Google. Any suggestions??
Click to expand...
Click to collapse
For starters when you toggle WiFi optimization you need to reboot for the setting to completely turn on/off.
What ROM / Kernel combo are you using? If that is stock then it is likely the router.
ISP routers are usually cheap, they don't handle multiple device traffic very well. One thing you can do is change the stock/auto settings they come with as they are less than desirable. Lower channels/and or Auto Channel (in both 2.4 and 5 GHz), QoS, software static IP, and even Google DNS can all interfere with your router. First go into build.prop and look for the 8.8.8.8 and 8.8.4.4 lines and delete them, reboot. Try that. If issues persist go into router firmware and change all the Auto settings to a preset. Even something as simple as your phone logged on at the same time could interfere if the channel is saturated. Take everything off the WiFi except for the n10 and try that. Getting a 3rd party router with dual band / 802.11n support is ideal.
The least likely issue is that it could be a hardware issue with your n10.

[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

How to hold your tablet so you don't block the wifi antenna

How best to hold your tablet so you don't block the antenna.
http://youtu.be/7v3AR6gZNYQ
This might be an isolated problem? I walked to the farthest part of my house that still gave me full bars and held my hand over where the video showed and I was fine. No issues what so ever.
Since OTA1.1 AND doing complete factory wipe and boot I can no longer complain as it's rock solid no matter how it's held, at least on 2g.
Sent from my SM-N9005 using Tapatalk
I got to agree, my shield's WiFi is pretty strong next to and upstairs away from my router, never had any problems from the start.
I guess some tablets are affected more than others.
This is mostly a 5ghz wifi issue when you are at the edge of the range (2 bars). I'm going to be making a long term review video soon that will address this. Also having a cover can help as well.
Voltron ish said:
This is mostly a 5ghz wifi issue when you are at the edge of the range (2 bars). I'm going to be making a long term review video soon that will address this. Also having a cover can help as well.
Click to expand...
Click to collapse
I've taken the advice from some users on the NVidia Forums and have provisioned separate access points for 2.4Ghz and 5Ghz so I can connect directly to each one when required.
It's a workaround until I get my RMA after the Cracked Case updated tablets are received and dispatched.
jaredmorgs said:
I've taken the advice from some users on the NVidia Forums and have provisioned separate access points for 2.4Ghz and 5Ghz so I can connect directly to each one when required.
It's a workaround until I get my RMA after the Cracked Case updated tablets are received and dispatched.
Click to expand...
Click to collapse
If your router allows it you should ALWAYS have your 2.4 GHz and your 5.0 ghz set up as two different networks. It will make the speed on your 5 GHz WAY faster. Also it allows you to pick specific devices to connect to each network type.
Name them both something different and give them both different passwords.
Sent from my SHIELD Tablet using XDA Free mobile app
I just got my tablet yesterday. I was setting it up last night, and noticed ALOT of wifi lag. I don't really hold it in landscape, I hold it in portrait mode, and I hold it almost exactly where that video shows the wifi antenna to be. In the bottom right corner, I would think, is where most people would hold a tablet, so I am surprised they put the antenna there. You would think they would put at the top.
I will test this more tonight. I might exchange it if I see those same issues.
jimmyhauser said:
I just got my tablet yesterday. I was setting it up last night, and noticed ALOT of wifi lag. I don't really hold it in landscape, I hold it in portrait mode, and I hold it almost exactly where that video shows the wifi antenna to be. In the bottom right corner, I would think, is where most people would hold a tablet, so I am surprised they put the antenna there. You would think they would put at the top.
I will test this more tonight. I might exchange it if I see those same issues.
Click to expand...
Click to collapse
In landscape mode the antenna is at the top. It's where the stylus is. In portrait mode you can hold it either way.
My biggest concern is for a tablet that needs great 5ghz wifi performance, they only used one wifi antenna.
Voltron ish said:
In landscape mode the antenna is at the top. It's where the stylus is. In portrait mode you can hold it either way.
My biggest concern is for a tablet that needs great 5ghz wifi performance, they only used one wifi antenna.
Click to expand...
Click to collapse
According to that video, the wifi antenna is in the lower right corner in portrait mode, right where I hold it.
I never have much luck with 5ghz wifi in my house, so I stick to the 2.4ghz band. I have a netgear R6250, and the 5ghz AP works great if I am on the same floor as the router. On the other two floors, it drops in and out on most of my devices (iphones, android phones, ipads, even my alienware x51)
I posted this in the Nvidia forum as well.
I've tested the wifi on my tablet in a bunch of different ways using ookla speed test and general chrome browsing. I have come to pretty much the same conclusion most people in here have. The wifi is weaker than most other wifi devices but this will not be noticed in an ideal wifi setup. For folks with less than ideal wifi setups, they are affected more.
There are a few caveats to my test: I am not using gamestream, so I can not comment on that. And I have such low wifi speed from my ISP (30mbps), that I can not test 5ghz top download speeds vs 2.4ghz top download speeds (because they both easily top out at 30mbps).
I want to go over the things that have improved my wifi performance.
1: Switching to 2.4ghz wifi. This has made the biggest difference for me. Paul Deemer was saying that not using 5ghz wifi is the best for the ST and I agree. I will switch to 5ghz when I gamestream and switch it back to 2.4ghz when I'm done gamestreaming (when I finally get my gaming PC back next month).
If you do need to use 5ghz wifi, see below for other improvements.
2: Using a wifi analyzer app to set my wifi channels up. My apple router is supposed to do this automatically, but when I used the wifi analyzer app I noticed that my channels were crowded.
I set my 2.4ghz wifi channel to an empty channel and I got a full bar more wifi strength in my living room. I set my 5ghz wifi to the highest channel I possibly could (I think 160) and I got a full bar more wifi strength in my living room as well.
3: Avoiding the wifi antenna. This only affects 5ghz wifi for me. When I use 2.4ghz this issue goes away.
http://youtu.be/7v3AR6gZNYQ
4: Using a cover. The cover seems to keep you hand from interfering with the wifi antenna. This is not a total fix, but it does help. Just like in this video at 6:30.
Wifi Death Grip Samsung Galaxy S4 Workaround: http://youtu.be/ySIUuMAvduM
5: Moving your router. If you're having wifi issues you could always try moving your router. I will be moving my router to my living room where I eventually will be gamestreaming.
All of this stuff has been talked about before in this thread and others. I just hope to help anyone out who is still having wifi issues.
I too noticed the issue was somewhat mitigated using a cover. But I still noticed many periods of lag (waiting for data to load) in apps. Even a few occasions of "Network connectivity issues". Reloading would make it go away.
I just sent my shield tablet back. In addition to the wifi, I have noticed twice now, the battery has gone from 70-80% to dead in just a few hours. With the screen off.
Strange ! Me that's reverse ! I have a 16 gb model. On a 2,4Ghz router.

how do you troubleshot wifi issues?

i did the basic checking and didnt find any problems
i got galasxy s5 tmobile 4.4.2 android stock rom rooted
and it supposedly supports 5g wifi but when i use it the wifi just dies out after some time and becomes like dial up speeds.
facebook doesnt even load pictures or update
same thing happends with reglar wifi but after a longer period of time
im suspecting my router but dont know for sure i got a brand new modem router n600 c3700-100nas with 50mbps comcast connection
i already set it to free channel on both 2.4 and 5g wifi also checked all the settings on the router its all normal
ran the speed test on the phone but it keeps using wireless network to run it and gets 84.38mbps tops depending on the day
and when i switch to cellphone network its fast i got 3gb cap so i try to conserve
wifi at home sucks ass and at work i have an older router and its good there.
wifi analyzer shows signal strength between 50-65dbm most of the times
but wifi 5g signal strength is alwayss weaker for some reason
You are right, 5ghz band will always be weaker, the higher the band the shorter the range, so 2.4ghz(standard) will go mjch farther that 5ghz. If this is an issues with both the channels i would for sure check the router for issues, if its only happening on the 5ghz band i'd just stick to 2.4ghz unless you REALLY want to be on 5ghz.
Sent from my SM-G900A using Tapatalk
is there any tools to test wifi that can tell me where the problem is?
ive been testing from my desktop and from cellphone best i can but my network skills are just slightly above noob.
i have some free tools on desktop for network troubleshooting but i havent used them yet(just downloaded)
on the phone i couldnt find many
im looking for some monitoring tools maybe ones that show graphs or something to show me whats goin on during the slow down times and what might be causing it.
if i remember correctly its not the wifi signal because that stays good all the time

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