[Q] wifi best connection problem - Galaxy S 4 Q&A, Help & Troubleshooting

When I'm at work and moving from one location to another, my S4 does not seem to automatically switch to the strongest wi-fi signal. It seems to "hold on" to whatever router it is connected to until it finally loses the signal completely. Only then will it re-connect to a stronger signal. I can manually work around this by turning the wifi off and on but this is a bit annoying... Does anyone else have this problem?
As an aside, I've not been able to disconnect during sleep by switching the sleep policy to "keep wifi on during sleep only when plugged in". Does this work for anyone?

Si345 said:
When I'm at work and moving from one location to another, my S4 does not seem to automatically switch to the strongest wi-fi signal. It seems to "hold on" to whatever router it is connected to until it finally loses the signal completely. Only then will it re-connect to a stronger signal. I can manually work around this by turning the wifi off and on but this is a bit annoying... Does anyone else have this problem?
As an aside, I've not been able to disconnect during sleep by switching the sleep policy to "keep wifi on during sleep only when plugged in". Does this work for anyone?
Click to expand...
Click to collapse
As to your first point, that has been true of all my wifi devices (iPad, phones, laptops, etc.) I think that is by design because you might find your device constantly switching sources when competing wifi signals have similar strength or if the signals are varying in strength due to local conditions.

speedlever said:
As to your first point, that has been true of all my wifi devices (iPad, phones, laptops, etc.) I think that is by design because you might find your device constantly switching sources when competing wifi signals have similar strength or if the signals are varying in strength due to local conditions.
Click to expand...
Click to collapse
Hmm, thanks. I never noticed this issue with my old S2 strangely. Perhaps it's because the S2 lost a weak wifi signal whilst the S4 has a slightly stronger lock and hangs onto it for longer. It's just very frustrating because so often my phone seems to be hanging on to such a weak signal I can't get any data through even though a strong wifi signal is available and a quick switch on/off of the wifi solves it. Anyway, I can live with it.
Anyone have any insight into my second question?

Related

Badly need of help: wi-fi issues - bad signal, droping connection

Hi,
I have huge issues on my TF with Wi-Fi, I am really despaired with it. Signal strength is weak even if I am standing very close to my router - on default wi-fi icon it shows 2 sections of 3 and Wi-Fi Analyzer says signal is -55db. Few steps away it drops to -63db. And If i decide to go to another room signal stays around -66db and connection drops in and out like hell, sometimes it just can't connect at all for minute or so.
First thing I was thinking it's my router transmitter is week - it was abit old, but I never heard problems with it before. So I bought new router 300mbs N router with 3 antennas and very good signal. This not helped at all. Signal strength shown by Wi-Fi Analyzer remains pretty same with all other problems.
I've tried various wireless settings - b/g/n only, various channels, security on/off etc, I've tried various ROMs - not much difference. I am beginning to think there's some hardware malfunction on my TF but still hoping I missed something. May it be that TF is performing badly with this exact router? My Nokia Symbian phone shows excellent signal strength overall whole flat and I don't have any disconnects sitting in farthest corner.
Any advise welcome. Thanks
i have a Samsung galaxy tablet (the original). using wifi analyzer, the transformer consistently has a 10 dBm lower signal level than the galaxy.
I hadn't compared the signal level with my Incredible, but looking at it side by side also shows the 10 dBm lower signal...
randy
Please do a search for wifi issues.loads of threads have covered this topic before

Note 2 not automatically switching to stronger WIFI signal?

Ok this may be kind of a long post but I'll first address what I think is the issue.
My note 2 doesn't appear to be automatically switching to stronger available wifi signals unless I manually toggle the wifi off then back on again. It will then connect to the stronger signal.
The reason why this has become an issue is because I bought a Diamond WR300n wifi range extender. I'm using it as a reapter. I want to have better wifi signal in my garage where I spend a lot of time. My current wifi signal drops off pretty much near the garage when using my phone. My laptop still gets decent wifi reception when I'm in the garage though.
I went through the fairly basic setup for the extender and got it working. I confirmed this by plugging in the ethernet port from the extender directly to my laptop and its receiving a signal just fine, browsing the internet etc.
So i put this extender in my garage, it connected normally and I confirmed it was working using my laptop again. Everything appeared to be working fine. The extender has the same SSID as my main wireless router (uverse 78wireblahblah).
The issue is when I'm inside my house I'm connected to the main wireless router because this is obviously the strongest signal. When I walk out of my house the signal diminishes as I approach my garage. I can walk into my garage and my wifi signal is pretty much gone even though there is this repeater putting out a working wifi signal with the same SSID as my main router.
Weird right, one would think it would automatically switch and connect to the repeater in the garage, but it doesn't.
Now if I manually turn off wifi and turn it back on while in the garage, bam, very strong signal and I'm connected. There really is two issues though, 1. my note 2 is not automatically switching over to the stronger signal (both the repeater and main wireless router have the same SSID) in the garage and 2. sometimes it connects to that stronger signal in the garage from the repeater (only after i manually toggle wifi off and on) but the internet doesn't work. I'm actually connected to my network because I can access my "Yamaha receiver app" that lets me turn up volume etc on my receiver but I don't have internet access etc. This is usually the case but after awhile it just seems to start working and I have full internet access.
I know this is only semi phone related but I figured since alot of guys on here are very savvy with this tech stuff, maybe someone could help.
Again
1. why won't my note 2 automatically switch over to that stronger wifi signal which should be the same in the garage.
2. why does it sometimes only connect to the network but doesn't allow outside internet access.
Should I try the "wifi jumper" app that supposedly auto switches to best wifi signal (i thought our phones do this anyways)?
Not sure if this is the right place to post this so please move if need be =)
Thoughts?
Stay on what Samsung preset.
Basically I owned a nexus s, it does have automatically jump to higher signal router or access point in android 4.1+.
So basically the WiFi just jumping from my router to access point and from access point to router and I ended up getting no WiFi signal. I have to switch off my access point (extender) to get my WiFi working again...
And note 2 won't give me this problem.
Accidentally sent from my Samsung Galaxy Note 2
If you'd ask me, just buy wifi jumper, you won't regret it!
It works perfectly fine with my 4 routers, all with different SSID. It's nice to have the best signal available wherever you are in the house. Wifi jumper gives me the best results I have had since trying a few different apps like it. The owner just finished rewriting the code for connecting to different routers with same SSID, so it should be the perfect solution in your situation!
And no, I'm not affiliated with it in any way, just a happy user :thumbup:
Edit: oops, old thread
thegipper said:
Ok this may be kind of a long post but I'll first address what I think is the issue.
My note 2 doesn't appear to be automatically switching to stronger available wifi signals unless I manually toggle the wifi off then back on again. It will then connect to the stronger signal.
The reason why this has become an issue is because I bought a Diamond WR300n wifi range extender. I'm using it as a reapter. I want to have better wifi signal in my garage where I spend a lot of time. My current wifi signal drops off pretty much near the garage when using my phone. My laptop still gets decent wifi reception when I'm in the garage though.
I went through the fairly basic setup for the extender and got it working. I confirmed this by plugging in the ethernet port from the extender directly to my laptop and its receiving a signal just fine, browsing the internet etc.
So i put this extender in my garage, it connected normally and I confirmed it was working using my laptop again. Everything appeared to be working fine. The extender has the same SSID as my main wireless router (uverse 78wireblahblah).
The issue is when I'm inside my house I'm connected to the main wireless router because this is obviously the strongest signal. When I walk out of my house the signal diminishes as I approach my garage. I can walk into my garage and my wifi signal is pretty much gone even though there is this repeater putting out a working wifi signal with the same SSID as my main router.
Weird right, one would think it would automatically switch and connect to the repeater in the garage, but it doesn't.
Now if I manually turn off wifi and turn it back on while in the garage, bam, very strong signal and I'm connected. There really is two issues though, 1. my note 2 is not automatically switching over to the stronger signal (both the repeater and main wireless router have the same SSID) in the garage and 2. sometimes it connects to that stronger signal in the garage from the repeater (only after i manually toggle wifi off and on) but the internet doesn't work. I'm actually connected to my network because I can access my "Yamaha receiver app" that lets me turn up volume etc on my receiver but I don't have internet access etc. This is usually the case but after awhile it just seems to start working and I have full internet access.
I know this is only semi phone related but I figured since alot of guys on here are very savvy with this tech stuff, maybe someone could help.
Again
1. why won't my note 2 automatically switch over to that stronger wifi signal which should be the same in the garage.
2. why does it sometimes only connect to the network but doesn't allow outside internet access.
Should I try the "wifi jumper" app that supposedly auto switches to best wifi signal (i thought our phones do this anyways)?
Not sure if this is the right place to post this so please move if need be =)
Thoughts?
Click to expand...
Click to collapse
wifi jumper is a good idea
luega said:
wifi jumper is a good idea
Click to expand...
Click to collapse
Yeah, Wifi Jumper is probably the way to go. In an ideal world, the WiFi stack would roam properly in all cases, but sometimes you're just not quite far enough for it to roam. This is even an issue with the PC also, but most manufacturers allow you to configure the roaming behavior of the driver to your tastes (max range or max speed).

will android switch to a better wifi if available?

Heyho, i currently have access to my wifi as well as to my neighbors network as my wifi gets weak while i am in the garden. I feel like android isnt awitching to my neighbors wifi automatically. Only when my wifi is completely gone, android will look for a new one.
I thought about making a task with tasker which looks for another wifi as soon as the current wifi strength goes below 25%.
Or is/should android do that aleady on its own?
Thanks
In wifi -> Advanced settings there's an option to avoid poor connection. I have no idea what it actually does, but give it a try.
I did the test with my router, which supports 2 frequencies.
Assuming both networks are saved in the phone, it connect automatically to the one with better signal or look for an alternative if signal is lost.
Thats what I mean, it will connect to the other WiFi if the connection is lost. But if the connection is crippled (bad) enough to not handle a music stream, but still "availabe" it will not switch to the other WiFi eventhough that other WiFi has 100% signal strength ?
I activated the "use wlan only if good strength available".. lets see how this works
I have multiple APs in my house and the only way I've ever got it to switch is by toggling wifi off and on (or loosing the first signal completely). This is an Android issue IINM, my GS2 and my N4 both have this issue.
I tried the "do not use weak WiFi".. didnt work.
zakazak said:
I tried the "do not use weak WiFi".. didnt work.
Click to expand...
Click to collapse
It has never worked for me either. Didn't work on my GSM GNex or with the N4.
I think it's how most WiFi clients work, otherwise if you were in the middle of 2 equal signals, it would spend more time disconnecting and reconnecting creating a DOS attack on the 2 AP's and leaving you with no data.
As for 2 home wireless routers, use the same SSID and authentication settings for both, and put one on channel 1 and the other on channel 11.
Make one a AP only (no router, no firewall, no dhcp server) and connect it to a client wired port on the first one. You can roam between them like people in large offices do.
or I try to make a tasker profile
if wifi strenght below 20% and another wifi is available with more than 30%, connect to that one.. then wait 5 minutes ?

Wifi not reconnecting

What happened:
I am using a new Nexus 4 in various buildings on a campus (specifically, the University of Washington). For simplicity, let's assume that there are just two buildings, Building A and Building B.
There is a strong WiFi signal within both buildings, and I can connect to the WiFi network in either one. When I walk between buildings, the signal drops outside, and the phone switches to 3G networking (as expected).
Once I'm inside the other building, however, the WiFi does not always automatically reconnect. Instead, the phone will often remain on 3G mode, despite being in the presence of a strong WiFi signal.
If I restart the phone, the phone will then reconnect to the WiFi signal. Unless I do this, however, the phone will remain in 3G mode indefinitely. This drains the battery and results in high data usage with my phone plan.
Steps to reproduce the problem:
1. Connect to campus-wide WiFi.
2. Walk outside. WiFi connection will drop, and phone will switch to 3G.
3. Walk inside another building. Phone will remain in 3G mode, rather than switching back to WiFi, despite being in the presence of a strong WiFi signal.
4. Restart the phone. After rebooting, the phone will now connect to the WiFi network.
What you think the correct behavior should be:
The phone should automatically switch back to WiFi when in the presence of a suitable WiFi signal. A manual restart or manual reconnecting to the network should not be necessary.
What kernel are you using?
Jsparta26 said:
What kernel are you using?
Click to expand...
Click to collapse
stock kernel from paranoid 3.50
(molesarecoming)
Did this issue occur before you were on PA rom 3.5?
If it didn't then I think it could be the rom if it's not then it's the school's wifi. It happens to me when I'm on campus too and I found out it the school's WiFi network was getting hammered and the signal was disrupted. No clue how that any of that happened.
Sent from my Nexus 4 using Tapatalk 2
Hi, I have the same problem. Did anyone manage to solve it? I have my Nexus 4 since yestereday and it's not reconnecting to my home wifi. Previous phone HTC Incredible S didn't have this issue and since that phone my wifi settings wasn't changed. I have AirLink AP, no name router and wifi is encoded with WPA. But i don't have to restart the phone to reconnect. It's enough to turn wifi on the phone off and on in settings. But it's really annoying. Thanks for hints.
And please excuse wrong expressions, I'm from Czech republic
Edit: I have stock rom, JB 4.2.2

Connection issues/radio instability

Is anyone else having problems staying connected to WiFi and/or cell service with the international version of this phone? After a while, everything seems to die. Putting it in airplane mode and taking it back out seems to fix it.
See the attached screenshots. The wifi will show connected with issues, and the cell service will be zero signal. After toggling airplane mode, everything goes back to normal.
Yours is IN2025 right? Are you on 10.5.4? I had some wifi issues but not sure if it was the phone or ISP problem. I updated to 10.5.5, haven't had a connectivity problem since. The update log specifically points to addressing connectivity problems
t-mizzle said:
Yours is IN2025 right? Are you on 10.5.4? I had some wifi issues but not sure if it was the phone or ISP problem. I updated to 10.5.5, haven't had a connectivity problem since. The update log specifically points to addressing connectivity problems
Click to expand...
Click to collapse
Yep, IN2025, but in 10.5.5. What is funny is that it has not happened once all day. It happened so many times the past few days before, that I was able to tell it was usually after putting it down for a period of time (maybe going I to a deeper sleep?). At this point, I'm hoping it will not come back, but I also know nothing changed to have fixed it either.
I wonder if it is related to the wifi calling bug, where not everyone sees it. I noticed the people who aren't getting wifi calling seem to be connected to APs that allow TKIP. I have Deco M9 Plus "mesh" APs, which are generally great, but don't offer much in the way of advanced configuration options... like not being able to select AES over TKIP.
I guess I'm still having issues. Almost immediately after I posted that reply, I noticed my cellular signal was showing really low. It didn't seem to resolve on its own, so I shut wifi off (wifi seemed fine this time). As soon as I shut wifi off, I got LTE+ mobile data, and the signal strength jumped up. I have only recently actually started to trust the signal strength indicator, after the fiasco with Apple marking them up a bit to make it seem like the signal was stronger.
It should be noted this is a partner tower outside my house (which is usually a strong signal) and not the home cell spot. Not sure why I'm not connected to the latter, as I haven't left the house today (which is usually when I pick that up).
Are you by any chance with Charter/Spectrum ISP? My aging netgear router crashed a few times as I was flashing and rooting but I just kept going so couldn't really tell what was going on. I am with Google Fi and have wifi calling enabled but have not had any issues. I do not have the mobile/wifi linking. I did see on 1+ forum that someone had an issue with his router crashing but I believe he had mobile and wifi connection linking enabled.

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