SM-T580 keeps scanning for wifi networks - Samsung Galaxy Tab A series Questions & Answers

I have a sm-t580 which can turn on the wifi but it keeps scanning for wifi networks. The wifi arches symbol is also not showing next to the clock and battery indicator. The bluetooth seems to be working, i can connect to a BT speaker. I can't play anything cause no wifi
I have tried to re-flash different stock versions, but nothing seems to work? When i go to settings about tablet and check under status, i see there is an Wifi MAC address. So i think the hardware is working and that there is a software issue. Just can't find how to solve and therefor i turn to you guys/girls.
Hopefully some one can give me some pointers or even better a solution
Thanks in advance!

Mark_70 said:
I have a sm-t580 which can turn on the wifi but it keeps scanning for wifi networks. The wifi arches symbol is also not showing next to the clock and battery indicator. The bluetooth seems to be working, i can connect to a BT speaker. I can't play anything cause no wifi
I have tried to re-flash different stock versions, but nothing seems to work? When i go to settings about tablet and check under status, i see there is an Wifi MAC address. So i think the hardware is working and that there is a software issue. Just can't find how to solve and therefor i turn to you guys/girls.
Hopefully some one can give me some pointers or even better a solution
Thanks in advance!
Click to expand...
Click to collapse
looks like your baseband got messed up, download this latest firmware for this tablet and install it using Odin
https://samfrew.com/download/Galaxy__Tab__A⑥__/dzjs/LUX/T580XXU4CSA1/T580LUX4CSA1/

zfk110 said:
looks like your baseband got messed up, download this latest firmware for this tablet and install it using Odin
https://samfrew.com/download/Galaxy__Tab__A⑥__/dzjs/LUX/T580XXU4CSA1/T580LUX4CSA1/
Click to expand...
Click to collapse
Should i use de CSC or the HOME file in the CSC section of Odin?

Mark_70 said:
Should i use de CSC or the HOME file in the CSC section of Odin?
Click to expand...
Click to collapse
you can use any of those, doesn't matter. I normally use CSE without HOME

Related

[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?

[Q] No Wi-Fi

Bought my Galaxy yesterday and it works fine but on one point. Yesterday I was able to find the home network of my friend in his house. I could connect to the internet with that as well as through 3g. But later at my place it does not work with any home network. When I try Settings, Wireless and network, Wi-Fi settings and Wi-Fi, the phone turns on Wi-Fi and scans for some seconds and the leaves a message that says "Unable to scan networks".
Maybe I have switched on or off something accidentally as I am a new user on this phone? Anyone for help?
turn off the phone
then turn it back on
in another words, reboot your phone, seems like it got stuck in some WiFi bug
It does not seem to help. I even took out the battery. Still unable to to scan
you can try this
*2767*3855# WARNING! FACTORY DATA WIPE AND RESET as soon as you enter the last # use it only if you want to clean wipe your phone
more over here
http://forum.xda-developers.com/showthread.php?t=721111
I really don't want that as long as I also cannot backup the video in it. Have not got the Kies program to recognize the phone yet.
Maybe there is another way to set the scan possibility?
roffie said:
I really don't want that as long as I also cannot backup the video in it. Have not got the Kies program to recognize the phone yet.
Maybe there is another way to set the scan possibility?
Click to expand...
Click to collapse
you don't need kies
see the last secret code?
It defaults to User space. I do not yet have any extra Micro SD card. Is it that what means with User space?
Tried that last command and do have at least one file of each in the folders, but the phone answers for each of them that the files are not ready? What else is there to be done?
Had same problem, tried factory reset... didn't solve it. any ideas? it can't get an ip address and it used to work
probably the next best thing is to use Odin to reflash the modem file to the phone
or a full flash to the latest firmware
Same problem appeared on my SGS. Boy this sucks. The wifi became "hard" to connect sometimes. Or I could connect but had no internet access. Then I disconnect and connect several times to have net access.
One hour ago the wifi died. I turn it on it says "Unable to search for networks" and shuts itself off.
WTF. I have to reflash!!!! Not good. Also I don't know what caused this. I'm on JM2 with One Click Lag fix 2.1
one thing is for sure, the STOCK rom has no problem with that
so it is either a Router thing, or a firmware specific problem
format said:
Same problem appeared on my SGS. Boy this sucks. The wifi became "hard" to connect sometimes. Or I could connect but had no internet access. Then I disconnect and connect several times to have net access.
One hour ago the wifi died. I turn it on it says "Unable to search for networks" and shuts itself off.
WTF. I have to reflash!!!! Not good. Also I don't know what caused this. I'm on JM2 with One Click Lag fix 2.1
Click to expand...
Click to collapse
JM2 isn't a final release firmware. Realistically, if you want everything (well, other than GPS) to "just work", stick to official firmware.
Well, I for one, have only the the official firmware and it is the latest one what I have learned. Still the phone behaves as in my original post after just a couple of hours. Is this and other peoples beautiful Samsung Galaxy model not tested enough by Samsung? Has anyone more information than we have?
AllGamer said:
probably the next best thing is to use Odin to reflash the modem file to the phone
or a full flash to the latest firmware
Click to expand...
Click to collapse
I agree thats Help me. or you can try upload update.zip (file to make root) on your device and flash that can help too.
Hi all! Thank you for your inputs to my problem. I have now got it working. For those who are interested how, I can tell you that I only did a simple Factory Reset command.
problem solved!
I had the same problem.
I was trying to configure a invisible ssid and by distraction I created a normal WPA 2 network, ending up with two networks with the same ssid (when I was turning off the wifi, it wouldn't go off at the first try, weird, )
Solution:
Edit the "/data/wifi/bcm_supp.conf" (with root permission) and eliminate the duplicated network, problem solved! At least in my case (no need for factory reset )
http://forum.xda-developers.com/showthread.php?t=757619

[Q] Galaxy S4 Wifi Issues

Hello,
I've already searched the forum for an answer but I've been unable to find any solution.
I have a GT-i9505 Galaxy S4 with Omega ROM. I though flashing a new rom will help me but it's the same.
Everytime I walk away from my router, it automatically sets the wifi as "Network disabled because internet connection is slow" and won't connect again. I have to manually click connect to force it to connect it. Also, when I'm in my University, it keeps disconnecting for the same.
How can I avoid this and force it to stay connected? Do I need to flash some custom modem or something?
Thanks
The answer!
baicunko said:
Hello,
I've already searched the forum for an answer but I've been unable to find any solution.
I have a GT-i9505 Galaxy S4 with Omega ROM. I though flashing a new rom will help me but it's the same.
Everytime I walk away from my router, it automatically sets the wifi as "Network disabled because internet connection is slow" and won't connect again. I have to manually click connect to force it to connect it. Also, when I'm in my University, it keeps disconnecting for the same.
How can I avoid this and force it to stay connected? Do I need to flash some custom modem or something?
Thanks
Click to expand...
Click to collapse
Check the wifi setting then go to advanced setting and uncheck the "Auto network switch" dialog box. Then Thats it. That's my problem too when i update my samsung s4 - Jelly Bean 4.3.I hope i helped you in this little issue. God Bless! :good:
i tried it but still...
rhyden_21 said:
Check the wifi setting then go to advanced setting and uncheck the "Auto network switch" dialog box. Then Thats it. That's my problem too when i update my samsung s4 - Jelly Bean 4.3.I hope i helped you in this little issue. God Bless! :good:
Click to expand...
Click to collapse
its still keeps on happening sir. This started when i used trulyclean
hammerthumbs said:
its still keeps on happening sir. This started when i used trulyclean
Click to expand...
Click to collapse
TRY THESE STEPS
1) Settings => Connections and tap Wi-Fi. Then tap Menu and make sure Keep Wi-Fi on during sleep is set to Always.
2) Turn off Wi-Fi power save mode on your S4. Type *#0011# on the phone dialer, then Menu => Wi-Fi and turn Wi-Fi power save mode to Off. (WORKED FOR ME)
3) Or change your router settings to 802.11 model
Galaxy S4 wifi non-connection/drop out NEW FIX
Had a problem for ages with my S4 not connecting to wifi and therefore no internet, no updates etc. My router is a Netcomm NB6Plus4Wn but this may work with most routers.
It would constantly go through the authentication, secured/saved cycle but rarely actually got an ip address.
After trial and error I found this worked straight away and it is a very easy fix.
Go to your router settings page, then wireless settings, look for Primary Channel setting.
There may be a (Lower/Upper selection) - tick the LOWER radio button and apply changes. Let router reboot.
Note I also use WPA/TKIP settings for security.
Test your S4.
Mine was set to Upper Primary Channel previously and as soon as I changed that setting to Lower Channel wifi and internet worked immediately.
I hope this helps some people with this common problem as I know how frustrating it can be.
Cheers
wifi verification problem
galaxy s4 GT-I9500 running pac-man rom. just started getting verification problem connecting to my linksys router one foot from my phone.
did the following on my phone: settings, Wi-Fi, settings, wps pin entry, msg reads " enter pin xxxxxxxxxx on your Wi-Fi router." where xxxxxxxxx is a number.
logged on to my router, clicked on Wi-Fi tab, under Wi-Fi protected setup, it asked me to enter the wps pin number from my phone. I did and after a minute or so, it indicated success and now my phone connects to Wi-Fi
weird. my phone connected for months without this procedure but just started failing today. thanks to the one who suggested checking the router setup.
wi-fi fix for samsung sph-720 or S4
baicunko said:
Hello,
I've already searched the forum for an answer but I've been unable to find any solution.
I have a GT-i9505 Galaxy S4 with Omega ROM. I though flashing a new rom will help me but it's the same.
Everytime I walk away from my router, it automatically sets the wifi as "Network disabled because internet connection is slow" and won't connect again. I have to manually click connect to force it to connect it. Also, when I'm in my University, it keeps disconnecting for the same.
How can I avoid this and force it to stay connected? Do I need to flash some custom modem or something?
Thanks
Click to expand...
Click to collapse
I recently ran into the same problem and my wi-fi button wouldn't come on no matter what I did. Finally, I took the phone to Best buy as the now have a Samsung store there and the guy reflashed my phone with the 4.3 update free of charge and it worked. When I got home I rooted over my phone and now my wifi works fine. Hope this helps.
my solution
baicunko said:
Hello,
I've already searched the forum for an answer but I've been unable to find any solution.
I have a GT-i9505 Galaxy S4 with Omega ROM. I though flashing a new rom will help me but it's the same.
Everytime I walk away from my router, it automatically sets the wifi as "Network disabled because internet connection is slow" and won't connect again. I have to manually click connect to force it to connect it. Also, when I'm in my University, it keeps disconnecting for the same.
How can I avoid this and force it to stay connected? Do I need to flash some custom modem or something?
Thanks
Click to expand...
Click to collapse
I tried everything nothing would help until i decided to download the 4.4.2 firmware from sammobile firmwares wat will automatically gives you the latest modem en bootloader and then instal any Custom rom and you Wifi will work . Hope that it will help you
Thank u neatearth
neatearth said:
TRY THESE STEPS
1) Settings => Connections and tap Wi-Fi. Then tap Menu and make sure Keep Wi-Fi on during sleep is set to Always.
2) Turn off Wi-Fi power save mode on your S4. Type *#0011# on the phone dialer, then Menu => Wi-Fi and turn Wi-Fi power save mode to Off. (WORKED FOR ME)
3) Or change your router settings to 802.11 model
Click to expand...
Click to collapse
I would like to thank u neatearth for these great info
mac adress unavailable HELP
so i rotted my s4 gt9500 and somehow it managed to lose it's mac adress says unavailable at the moment unfortunately i have no efs backup so iam on a stalemate here i really need to get back my mac adress somehow so that the wi fi works again properly.any help you really be appreciated.
p.s the phone does not work on a custom rom yet since i encoutered this problem and want to fix it first.

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...

WiFi Constantly Dropping and doesn't reconnect

Hi,
I have a Samsung galaxy S5, and the phone keeps dropping the WiFi constantly, and notifies me every time with a notification "Sign into WiFi network" (I don't have to sign into my WiFi network), and after a while (like ~5mins) it disconnects by itself with this message"Your Device has been disconnected from this network, your session has timed out". I have done the following things:
- Disable Smart Network Switch -- No Help
- Keep WiFi on during sleep (always) -- No Help
- Always allow scanning (checked) -- No Help
- WiFi timer (disabled) -- No Help
- Forget the network and reconnect with the network -- No Help
- Tried both 2.4GHz an 5GHz frequencies -- No Help
- Changed ROM (at first it was XtreStoLite then I have changed it to OmegaROM) -- No help
- Flashed Stock ROM (firmware) with Odin (UK-ROM-OPEN) -- No Help
- Wiped everything (Data, user Data, System, ...) -- No Help
- Changed Router's SSID -- No Help
- Reset Modem's Settings -- No Help
- Changed Network Channels -- No Help
- Changed Network pre-shared key - Password -- No Help
BTW: I have like 10 devices in my Home and none of them have problem with my network, So I assume the problem should be from the S5!
Device: Samsung Galaxy S5 SM-G900F
Modem: Netgear R7000 Nighthawk
It will be greatly appreciated if anyone could give me another solution.
0xetrov1 said:
Hi,
I have a Samsung galaxy S5, and the phone keeps dropping the WiFi constantly, and notifies me every time with a notification "Sign into WiFi network" (I don't have to sign into my WiFi network), and after a while (like ~5mins) it disconnects by itself with this message"Your Device has been disconnected from this network, your session has timed out". I have done the following things:
- Disable Smart Network Switch -- No Help
- Keep WiFi on during sleep (always) -- No Help
- Always allow scanning (checked) -- No Help
- WiFi timer (disabled) -- No Help
- Forget the network and reconnect with the network -- No Help
- Tried both 2.4GHz an 5GHz frequencies -- No Help
- Changed ROM (at first it was XtreStoLite then I have changed it to OmegaROM) -- No help
- Flashed Stock ROM (firmware) with Odin (UK-ROM-OPEN) -- No Help
- Wiped everything (Data, user Data, System, ...) -- No Help
- Changed Router's SSID -- No Help
- Reset Modem's Settings -- No Help
- Changed Network Channels -- No Help
- Changed Network pre-shared key - Password -- No Help
BTW: I have like 10 devices in my Home and none of them have problem with my network, So I assume the problem should be from the S5!
Device: Samsung Galaxy S5 SM-G900F
Modem: Netgear R7000 Nighthawk
It will be greatly appreciated if anyone could give me another solution.
Click to expand...
Click to collapse
Just wondering, are you using a particular custom ROM ? If so maybe try another one to see if it fixes the issues.
Also if you could can you get a logcat of before and during the error occurs and i will look through it see if i can point out the problem.
W18WAR said:
Just wondering, are you using a particular custom ROM ? If so maybe try another one to see if it fixes the issues.
Also if you could can you get a logcat of before and during the error occurs and i will look through it see if i can point out the problem.
Click to expand...
Click to collapse
Thanks for your reply, Yeah at first I used "XtreStoLite " then OmegaROM, after OmegaROM, Stock ROM, and now I'm back to OmegaROM, at first the problem solved but after I have restarted my phone, the problem came back.
I have created a logcat using adb, I hope it helps.
https://drive.google.com/file/d/0B49_ZoLlvaEeRExjdzZZcEpHUms/view?usp=sharing
Thanks
0xetrov1 said:
Thanks for your reply, Yeah at first I used "XtreStoLite " then OmegaROM, after OmegaROM, Stock ROM, and now I'm back to OmegaROM, at first the problem solved but after I have restarted my phone, the problem came back.
I have created a logcat using adb, I hope it helps.
Thanks
Click to expand...
Click to collapse
Does this happen on other wifi networks or just your home Wifi, as it appears that it is down fluctiuations in Wifi Signal, i would suggest changing the Wifi Channel Settings on your home Wifi Router to another channel.
The LogCat shows the changes in signal stregnth followed by a network drop, it at no point says that the Wifi Module has turned off !
W18WAR said:
Does this happen on other wifi networks or just your home Wifi, as it appears that it is down fluctiuations in Wifi Signal, i would suggest changing the Wifi Channel Settings on your home Wifi Router to another channel.
The LogCat shows the changes in signal stregnth followed by a network drop, it at no point says that the Wifi Module has turned off !
Click to expand...
Click to collapse
Thanks for your reply, I've changed the Wifi channel like you said, but no luck, I've flashed a AOSP ROM (Cyanogenmod) and now the problem is gone, no problem at all, so I'm glad that there is no issue with the wireless adapter, I assume, that this problem is related to Samsung's Touchwiz based ROMs , maybe changing modems will solve this issue ?
0xetrov1 said:
Thanks for your reply, I've changed the Wifi channel like you said, but no luck, I've flashed a AOSP ROM (Cyanogenmod) and now the problem is gone, no problem at all, so I'm glad that there is no issue with the wireless adapter, I assume, that this problem is related to Samsung's Touchwiz based ROMs , maybe changing modems will solve this issue ?
Click to expand...
Click to collapse
In that case i would try donwloading a stock ODIN firmware from Sammobile.com and then installing that Via Odin, looks like it could be a baseband issue !
I would go to sam firmware and then choose the correct ODIN software for your device and try that !
I bet it fixes it. Also as you have installed CyanogenMOD i would try installing a different Kernel Also as this may be causing you a problem.
wifi disconnect
I had the same problem on my Gs5 on my work wifi.. was a google.client issue. This thread worked for me.. i had to do "plan b" and enter the stuff into the network config of the phone, actually used the inputs from one of the replies:
http://forum.xda-developers.com/and.../howto-wifi-drop-caused-sign-to-wifi-t2862509
Had previously tried everything you listed as well.

Categories

Resources