Database Users

Phone auto connecting to random Wifi access points

All,
My brother has a T-Mobile stock ROM HD 2 and he has the issue where device would just randomly connect to available access points, including a BT OpenZone and a Netgear home router. The worst thing is that if the device is connected to his home [preferred] router, it would all of a sudden connect to the BTOpenZone one and totally disable all activity and actually bring up their registration page, etc. It connects to this [random] Netgear one when he is at his in-laws place.
Just to say that these access points have never previously been added as a preferred network or otherwise.
I used to have a WM device (on to Android now) but never used the WiFi connection, so perhaps I'm missing something obvious (?!)
Any help would be greatly appreciated.

This is normal behaviour, if you leave your wifi on. It automatically searches for and tries to connect to any nearby wifi sources. All you have to do is turn wifi off. Just turn it on when you want to use it.
There's a toggle app in one of the stickied threads (cabs & tips)

Must go into the WIFI settings and after couple of Nexts, Uncheck the /Automaticaly Find The Key/ or something like that..also you can go into WIFI options and remove a certain routers setting,just play around a bit with the settings and you will find it.

johncmolyneux said:
This is normal behaviour, if you leave your wifi on. It automatically searches for and tries to connect to any nearby wifi sources. All you have to do is turn wifi off. Just turn it on when you want to use it.
There's a toggle app in one of the stickied threads (cabs & tips)
Click to expand...
Click to collapse
Surely it's not default behaviour? I vaguely remember that it automatically searches for wifi APs (if the WiFi is on) but never knew it automatcally connected without you asking it to do so, especially if you have never connected to that AP before or previously added it as a preferred network.

hagba said:
Must go into the WIFI settings and after couple of Nexts, Uncheck the /Automaticaly Find The Key/ or something like that..also you can go into WIFI options and remove a certain routers setting,just play around a bit with the settings and you will find it.
Click to expand...
Click to collapse
I shall have to give that a go and look for that setting.

I have the device in front of me now, but fail to find any settings to disable/prevent this behaviour.

[Troubleshoot Discussion] all SGS WiFi problems here!

i dont think this is a SGS specific problem, possibly an app is doing this but cant figure out which one, during the day usually when i take out of sleep the wifi will come on for a moment then switch off, other times it stays on.
I have uninstalled Locale, and now use tasker but there are no settings I have entered for wifi, is there a way of figuring out which app could be doing this?

I have the some problem and don't know what it is
You can go to options and then go to wifi advanced options
(I have a Dutch phone so i don't know to correct name on English language on your phone)
you can select "never go to sleep" or somthing like that.
But is still have the problem

I'm also finding that I have to detach/reattached the wifi connection quite regularly. I'm using it on a 'n' network.

damianarnold said:
I'm also finding that I have to detach/reattached the wifi connection quite regularly. I'm using it on a 'n' network.
Click to expand...
Click to collapse
this is bug in the system.. it is the location doing.. it any app trying to get your location.. you are supposed to be able to turn it off by unchecking use wireless to determin location under wifi.. but it does not always seem to work.

I think the problem is with Google Maps (or Navigation, I don't remember). When I open it and starts to fix my location, the wifi will turn on althought I disabled in the settings the use of wifi networks to help the GPS. In theory, when you close GMaps/Navigation the wifi will turn off, but sometimes it will just leave it on.
It doesn't happen with other GPS apps like GPS Status, etc...
Will check what happens with Sygic later!

yes i have also tried unchecking check wireless networks for location, maybe switch off latitude?
its really bugging me as sometimes it gets stuck on switching off and you then cant do anything, and if you really do need wifi have to restart phone.
edit: switched off latitude, see if this is the culprit

I don't think Latitude has anything to do. I never used it and I have the same problem.

i have the same problem! its sooo annoying...

For the record, i'm using firmware XXJF3
If someone is using a newer firmware please check if the bug is already fixed.

not fixed in jf5 or jf7
just had to reboot stuck turning off. if anyone has a workaround or what service to kill to do so without rebooting please post.

I have all sorts of problems with wifi... keeps turning itself on when I disable it, keep losing connection, drains battery, locks the phone up (i think its wifi doing this) etc...
I tried wifi fixer app, and you can see how many times it disconnects/reconnects even after disabling sleep etc

rodh257 said:
I have all sorts of problems with wifi... keeps turning itself on when I disable it, keep losing connection, drains battery, locks the phone up (i think its wifi doing this) etc...
I tried wifi fixer app, and you can see how many times it disconnects/reconnects even after disabling sleep etc
Click to expand...
Click to collapse
i have location with wifi on. it disconnects automatically only when i'm not in the range of a saved network. Then it will connect to this network and stay connected

Any one else have any theories on how to fix this?

I think the problem is with the "Use wireless networks" setting not taking any effect on the phone (I have it disabled).
Having wifi turned off, if I open some GPS app wifi will turn itself on automatically. I think it is because it searches for nearby APs to fix the location more quickly. The problem is that the location is not as exact as with pure GPS. When I quit the app wifi will turn off automatically. This happens even if I have unchecked the above system setting.
A workaround that worked for me was to disable wifi AFTER opening the app that uses GPS, and the location was more precise.
Note that I tried this with Google Maps and Sygic Mobile Maps, so it seems like a system-level bug rather than app bug.
Anybody has noticed the same behavior?

My wifi is very annoying.
Every few minutes while I use e.g. the internet browser the connection just dies.
It often happens during loading of a web page or updating in the weather app.
My solution so far is to tun wifi off and on again, then it will work for another few minutes before it suddenly hangs again.

king.mark said:
My wifi is very annoying.
Every few minutes while I use e.g. the internet browser the connection just dies.
It often happens during loading of a web page or updating in the weather app.
My solution so far is to tun wifi off and on again, then it will work for another few minutes before it suddenly hangs again.
Click to expand...
Click to collapse
I have exactly the same issue. Which network system do you use? My router supprts "n" standard, maybe that cause the issue?

I think I might have fixed it by first turning it on and then turning it off(wireless location that is). Never managed to open up Google Maps before without the phone enabling wifi as well.
EDIT: Oh, and I'm running the custom ROM from Modaco.

Toss3 said:
I think I might have fixed it by first turning it on and then turning it off(wireless location that is). Never managed to open up Google Maps before without the phone enabling wifi as well.
EDIT: Oh, and I'm running the custom ROM from Modaco.
Click to expand...
Click to collapse
Tried it on stock ROM version JF3 and still the same issue.
Regarding MCR, I didn't see in the info on modaco forum anything related to this GPS issue, maybe Paul fixed something without knowing?

darksnarfer said:
...Regarding MCR, I didn't see in the info on modaco forum anything related to this GPS issue, maybe Paul fixed something without knowing?
Click to expand...
Click to collapse
Why GPS issue? thought this thread is about Wi-Fi Internet connection issue?

darksnarfer said:
Tried it on stock ROM version JF3 and still the same issue.
Regarding MCR, I didn't see in the info on modaco forum anything related to this GPS issue, maybe Paul fixed something without knowing?
Click to expand...
Click to collapse
Could be, but most importantly - Google Maps is finally usable again(for me at least)! Did you enable the "Use Wireless Networks" option and then open up google maps or did you just toggle it quickly?

Radio troubles

Hey guys great news on our own section! Do any of you notice wireless dropouts? I have the wifi on whenever I'm at home and it will drop out quite regularly probably once per hour. I also notice that the gsm meter will go to 0 bars when I turn the wifi on our off and on other occasions. does anyone else see this kind of behavior?
Sent from my u8800 using XDA App

Wifi Drop-outs
Yep, I also notice dropouts. Usually it's not a problem for web browsing but it is annoying when it stops youtube playback (which often happens).
From looking around I know that there are some others that also have this problem.

I thought there was something in "settings" to switch off wi-fi sleep, or am I thinking of my Xperia X8? Certainly my Ideos X5 shuts off its wifi after a few minutes, and yes, it is annoying.
Try installing a battery power manager app from market, there might be a "wi-fi stay on" in that ... maybe THAT's what I did to cure similar behavior on the Xperia.

some people (in chinese forum) mentioned it could be due the router's (i presume u r using one) incompatibility with the wifi module..
try changing to another router may help, if possible..
others hinted that flashing the malaysian 136 rom solved this problem..
u may try at ur own risk..

Wifi Sleep Policy/Static IP - possible solution??
I had this problem while at home on the network and this worked for me:
In the advanced settings Menu of Wireless/NW is WiFi Sleep Policy in which there are 3 options:
When screen turned off, Never when plugged in and Never. Mine was set to the first one so I chose Never.
Next, Use a Static Ip - enter settings and reboot
IP settings are also on this screen along with the MAC address.
This has solved the problem for me and have certainly noticed an improvement on battery usage, an added bonus for sure.
I don't use mobile data (or try not to!!) so not sure in what way a static IP would affect that.
Great to have a forum for the X5, many thanks XDA

I've noticed that if the GSM signal drops out it can lock up both the Wifi and Bluetooth as well.

advanced settings for wifi -> never sleep works like a charm

dibb_nz said:
I had this problem while at home on the network and this worked for me:
In the advanced settings Menu of Wireless/NW is WiFi Sleep Policy in which there are 3 options:
When screen turned off, Never when plugged in and Never. Mine was set to the first one so I chose Never.
Next, Use a Static Ip - enter settings and reboot
IP settings are also on this screen along with the MAC address.
This has solved the problem for me and have certainly noticed an improvement on battery usage, an added bonus for sure.
I don't use mobile data (or try not to!!) so not sure in what way a static IP would affect that.
Great to have a forum for the X5, many thanks XDA
Click to expand...
Click to collapse
Yep the static ip fix worked for me, thanks for that. I had done the Never sleep selection but did not notice an improvement. As @trk pointed out on Whirlpool, the static ip Fix is of limited use if you use several wifi access points regularly. I only use mine at home so it's great.
Did the OP get a result with this?
Now to tweak it so that annoying warning stops popping up about causing traffic etc.

GolfCranK said:
Yep the static ip fix worked for me, thanks for that. I had done the Never sleep selection but did not notice an improvement. As @trk pointed out on Whirlpool, the static ip Fix is of limited use if you use several wifi access points regularly. I only use mine at home so it's great.
Did the OP get a result with this?
Now to tweak it so that annoying warning stops popping up about causing traffic etc.
Click to expand...
Click to collapse
Take a look here to disable the annoying warning:
[MOD]How to get rid of the data usage reminder when Wifi is disabled
http://forum.xda-developers.com/showthread.php?t=1045855

大家好，在这里与大家真诚交流。

Don't know about wifi, cause I don't use it but 3G is doing it. It just can't connect to any network, even there is very good network available. When trying manually search it doesn't find any networks. Sometimes even rebooting doesn't help.
My two friends have same phone and they says that their units are also dropping connection. They have solved it by forcing device to 2G, but I live in area where is only 3G 900MHz available.
Hope this will be solved in future updates or by coocked rom.

S5 Keeps Disconnecting WIFI

Hey there,
Got an S5 i bought in april and so far loving it but just recently about a day or 2 ago my phone keeps disconnecting and connecting when im at home on my WIFI which never happened before, has anyone had this issue before?
appreciate the help people

Godmyster said:
Hey there,
Got an S5 i bought in april and so far loving it but just recently about a day or 2 ago my phone keeps disconnecting and connecting when im at home on my WIFI which never happened before, has anyone had this issue before?
appreciate the help people
Click to expand...
Click to collapse
I do not have the issue, but maybe you can try this.
1. Open phone dialer (Phone App)
2. Dial *#0011#
3. The ServiceMode screen will be open. When it is open. Tap on menu button on top right.
4. Select "WiFi"
5. Find "WiFi Power Save Mode"
6. Press the "ON" button to turn the "WiFi Power Save Mode" off. (It will show as "OFF" if it is off)
7. Your WiFi will be off and on again.
8. Try to reconnect to the Wifi.

This didnt work still the same

Godmyster said:
This didnt work still the same
Click to expand...
Click to collapse
You haven't got smart network switch turned on? (under WiFI settings) it'll do that if it thinks you WiFI connection isn't stable.

Godmyster said:
This didnt work still the same
Click to expand...
Click to collapse
Set Google public DNS in your router

Ok i just found out its only doing it at home, i tried wifi and my work and it works perfectly doesnt disconnect and connect, but at home it does, though it never did it before and i didnt change or do anything to my router or my phone which i find very strange.
thanks for the help guys i appreciate it a lot, does anyone know what i can do?

have you found a fix to this yet? I'm having the same issue and getting ready to just return the phone and buy something else. My home network is fine, the other tablets, phones, laptops are having 0 issues, Yet my GS5 is either dropping or something, it seems to run horrible slow and things just time out.

Godmyster said:
does anyone know what i can do?
Click to expand...
Click to collapse
No, and the reason that we don't know is that you didn't provide any useful details about your situation.
If you think that someone can do more than make a random guess implies that you think that there are only one or two possible causes. But most issues, including this one, have hundreds of possible causes. So random guesses are not terribly useful. Nor are we psychic, so the only way to efficiently narrow it down is to look for anomolies in your configuration. Which you haven't described.
You should be providing as much technical detail as possible, e.g. what is your home router model & it's firmware version and configuration details, phone firmware version, any specific error messages, any observed pattern, a logcat if you can and anything else that seems relevant.

Godmyster said:
Hey there,
Got an S5 i bought in april and so far loving it but just recently about a day or 2 ago my phone keeps disconnecting and connecting when im at home on my WIFI which never happened before, has anyone had this issue before?
appreciate the help people
Click to expand...
Click to collapse
Have you tried changing the channel on your router?
Sent from my Nexus 7 using Tapatalk

Change the router channel
Change the router SSID
Default the router comfiguration
Change the router operating mode
Update the router firmware
Move the router to a different location
Use a different router
Unplug your neighbours new 50,000 watt pirate radio station
Update your phone firmware
Buy a different phone
Sacrifice a piece of triple chocolate gnocche cake to the pagan God of chocolate and wifi
All random guesses with roughly equivalent (and small) chances of success.
Or one could try troubleshooting the issue methodically.
.

Solution
Godmyster said:
Hey there,
Got an S5 i bought in april and so far loving it but just recently about a day or 2 ago my phone keeps disconnecting and connecting when im at home on my WIFI which never happened before, has anyone had this issue before?
appreciate the help people
Click to expand...
Click to collapse
Hey guys,
I had this problem before, This is an issue with your samsung device and your ISP. They aren't compatible with each other.
Solution:
You must just block clients3.google.com in your modem/router. You can use Block Web Sites section in your modem/router.
Every thing has a solution.
Enjoy your device WIFI.

IranDev said:
Hey guys,
I had this problem before, This is an issue with your samsung device and your ISP. They aren't compatible with each other.
Solution:
You must just block clients3.google.com in your modem/router. You can use Block Web Sites section in your modem/router.
Every thing has a solution.
Enjoy your device WIFI.
Click to expand...
Click to collapse
I have teh same issue on my S5 Cricket. The WIFI does NOT disconnect. Its connected however I don't have internet connection. Turning the WIFI on and OFF fixes the issue, for a short while until it happens again in an hour. Sometimes I slick on a link and wait and wait just to find out the darn WIFI is not connected to the internet. (probably not even connected to my router properly eg, I cant see my laptop shared drives for example).
This has something to do with saving battery or somthing. WIFI internals shut down, even though the icon on top of the screen still shows I'm connected.

Smart Network Switch
Godmyster said:
Hey there,
Got an S5 i bought in april and so far loving it but just recently about a day or 2 ago my phone keeps disconnecting and connecting when im at home on my WIFI which never happened before, has anyone had this issue before?
appreciate the help people
Click to expand...
Click to collapse
Your phone thinks that your WiFi is unstable and dumps the connection to go back to 4g. Why exactly, who knows, but it's easy to turn off the "smart" network switch. Simply hold down the WiFi icon for 2 seconds to get into the connections section. Right there at the top is the smart network switch section ... just uncheck the selection box. Easy.
Lastly, people like fffft need to get over themselves. The fix for the original poster's question was easy, but since fffft didn't know it, he decided to instead attack in order to make himself feel superior. How sad and pathetic does someone have to be to troll forums looking for opportunities to attack and belittle someone else?

minin0la said:
I do not have the issue, but maybe you can try this.
1. Open phone dialer (Phone App)
2. Dial *#0011#
3. The ServiceMode screen will be open. When it is open. Tap on menu button on top right.
4. Select "WiFi"
5. Find "WiFi Power Save Mode"
6. Press the "ON" button to turn the "WiFi Power Save Mode" off. (It will show as "OFF" if it is off)
7. Your WiFi will be off and on again.
8. Try to reconnect to the Wifi.
Click to expand...
Click to collapse
The issue is resolved simply by going to the advanced settings in Wifi and disabling 'Always allow scanning'.
Hope this helps.

same issue with my s5
Airax said:
You haven't got smart network switch turned on? (under WiFI settings) it'll do that if it thinks you WiFI connection isn't stable.
Click to expand...
Click to collapse
I had the same issue. I just tried the suggestion, turning of smart network switch in the wifi-advanced menu. Seems to be working so far!
Thanks!

Well I know that Smart Network is turning off wifi.. problem is that i have a fiber at home!! So what kind of problem smart network finds on my broadband?? ?

solution to wifi disconnect problem
I was looking for an answer to a different wi-fi question when I saw this.
I'm on AT&T with my S5.
Under the Wi-Fi settings I have an option for "Smart Network Switch" which says it Automatically switches between Wi-Fi and mobile networks to maintain a stable internet connection. Anytime a computer says it automatically does something for me; I typically say no thanks. I don't typically like my devices making assumptions of what I like, don't like or want to do. So I have that option unchecked. I never have an issue with the network stability once I've connected to a specific wi-fi connection.
Not sure if that will help you all or not. But thought I'd share.
so under Settings --> Quick Settings --> Wi-Fi you will find a check box option named "Smart network switch", untick it, this should take care of the problem.
leon.

Same problem
Hi, I have the same problem. Here some info:
- Device: Samsung Galaxy S5 (SM-G900F), Stock, not rooted
- Android version: 5.0
- Kernel version: 3.4.0-5640614 (2015-09-01)
- 'Smart network switch' is turned off
- 'Always allow scanning' is disabled
The problem started 2-3 days ago. When I turn on WiFi/WLAN the phone constantly turns it back off and on again. Didn't happen before, didn't change anything on the router (I have no access to it ) and didn't install a new app (as far as I can remember). I don't know if it only happens on this access point.
I made a log file (adb logcat) but am not sure if it contains sensitive information, is it save to share online?

The logcat doesn't contain any sensitive passwords.
816-8055 said:
Hi, I have the same problem. Here some info:
- Device: Samsung Galaxy S5 (SM-G900F), Stock, not rooted
- Android version: 5.0
- Kernel version: 3.4.0-5640614 (2015-09-01)
- 'Smart network switch' is turned off
- 'Always allow scanning' is disabled
The problem started 2-3 days ago. When I turn on WiFi/WLAN the phone constantly turns it back off and on again. Didn't happen before, didn't change anything on the router (I have no access to it ) and didn't install a new app (as far as I can remember). I don't know if it only happens on this access point.
I made a log file (adb logcat) but am not sure if it contains sensitive information, is it save to share online?
Click to expand...
Click to collapse
I'm have the exact same problem.
Samsung Galaxy S5 (SM-G900T)
CyanogenMod (13.0-20151203)
Android 6.0 (Marshmallow)
Baseband (G900TUVU1ANE6)
Smart network switch: disabled
Always allow scanning: disabled
What's happening is as soon as my Wi-Fi finishes authenticating and connects, it is immediately disconnected and tries again. No other devices in my house are having any issues, so that eliminates the router. When I factory reset my phone the Wi-Fi begins to work again, so that eliminates my phones hardware. The confusing part is that I installed a bunch of apps such as AdGuard that could possibly cause an issue but everything worked and this started out of nowhere. Also, I factory reset my phone AGAIN and AGAIN, everything worked and out of nowhere while I was looking at my screen while idling, I watched as the Wi-Fi connection dropped and began the disconnect/reconnect loop...
I'm assuming it has to be a software issue because it only started when I updated to a newer Cyanogen. I'm about to test if other Wi-Fi networks have this problem and I'm also going to look through and post a log.
If anyone has any questions or suggestions that may lead to a fix, PLEASE help!
Thanks

Well I factory reset again, this time wiping the internal storage and everything is now fine. I did look at my logcat and there were Wi-Fi errors but I forgot to post them...

[Q] Wifi continuously scanning while phone has good wifi connection.

This started Feb 3rd or 4th. The phone will connect to the wifi network, with a good signal. It will then re-scan every 5 seconds or so. This is causing all sorts of data transfer issues from downloads freezing to apps losing connectivity while running.
I am running on Verizon.
Specs below: (Sorry can't direct link yet...need 10 posts)
imgur.com/RfDVNlz
imgur.com/TnK9wNr
I am now running Android 5.0 but had NOT updated to 5.0 when this problem started.
I scoured google a bit and found an ATT forum that is essentially reporting what I am.
forums.att.com/t5/Samsung-Discussion-Support/Samsung-Galaxy-S5-Wi-Fi-Connectivity-Problems-After-4-4-4-Update/td-p/4190704
All other devices on the network are operating without issue - phones and computers - as was mine until now.
I have power cycled everything.
I have checked the routers settings.
The phone has been power cycled several times.
The phone has had every wifi setting that would be causing this scanning, that I know, disabled.
The following are off in Wifi > Advanced:
Wifi notifications
Passpoint
Always allow scanning
Smart network switch
I then, after the above, updated to Android 5.0. The issue still persists. Help me please.

My device does this, too. Cant say I have ever really noticed, I dont know if it has always done this or not.
I am not experiencing any issues like you describe.

Now that I think about it, I think it will always scan at a set interval when you enter the Wifi settings. It assumes you are looking for a network to connect to. I doubt its scanning when you are not in that setting.

I had this problem the other day. I went to wifi settings and had it forget the network and then rebooted and reconnected to my wifi network and it seems to have resolved the issue. others have just switched airplane mode on and off and this fixed it. good luck