Database Users

Please help me troubleshoot my wifi problem!

Fresh flash of WM 6.5 over radio 3.42.50 on a Titan. Under Network Management, I've selected that "Programs that automatically connect to the internet should connect using:" My Work Network, since I don't have a data plan. I go to Wifi settings, select Add New, put in the ssid, click through the security settings (temporarily disabled for this test purpose). My network shows up as "Unavailable". (I'm standing right next to the router). I click "Connect", it says "Connecting" for a couple of seconds and then goes back to "Unavailable".
What should I check first? I'm at my wits end.

You shouldn't have to "add new", your ssid should be automatically discovered and displayed in the list of wifi networks.
Did you connect to a wifi with your phone before, or is it a first attempt ?

Yes, I'd been connecting just fine until a few weeks ago. In fact, the refusal to connect was what prompted me to flash the thing -- figured that starting over might help.

So, your wifi connection was working well, but suddenly, for some obscure reason, it stopped working. Therefore, you decided to reflash your phone, but it didn't help, still not working.
Is that correct ?

I know I sound like a complete doofus, but yes, that's basically it. The weirdest thing is that every once in a while it'll find a wireless network and connect. But the connection never lasts for more than a few minutes, and then when it's gone the network is "Unavailable". And to anticipate your next question: There doesn't seem to be any rhyme or reason for when it works. At this point I'm thinking I'll pick up a used Titan or Vogue on eBay and junk this thing.

Did you try a different rom ? Could be a faulty rom.

I've tried several different roms, yes.

this happens in some roms...
go2 wireless lan settings and then go2 power mode.change it to best perfomance frm best battery

[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

strange wifi problem, please help

hey guy,
i got this really strange problem. i tryed to log on to a wifi network that belongs to a hotel. the network, if u are on a pc, once u connect u got to type in a user name and password through the browser to be able to surf. so... i connected, but the wifi indicator in the status bar stays gray. so i decided it's gonna work from the phone and ever since, where ever i go i can't see any wifi signals, even though they are there. a friend can access networks through his phone, but i can't even see it when i tick the wifi on.
all it does is say "conecting..." and if i wait it goes to "dosconnected".
this is on 1.06 version, never had anything like this till now and i've been using nfinity since 2.2 ROM.
please help...
ps; i've posted this in the nFinity rom thread, but sadly question are often not answered there...

same problem
I have the same problem, and not just with protected wifi network also with free ones. With previous nFinity i was able to scan, recognize and connect to every available network, but with 1.06, 95% of scanning finishes with Disconnected wifi.

Go into the wifi settings, press menu button then check domain settings in the special menu. Set to 13 or 14 channel to see all available wifi signals.

sakos1 said:
Go into the wifi settings, press menu button then check domain settings in the special menu. Set to 13 or 14 channel to see all available wifi signals.
Click to expand...
Click to collapse
tried it and it doesnt help ;
@dimitars, at least u can see the networks. i can't. networks are there, because i know or somebody next to me shows them, but i can't see them even after scannong. all it does is say "connecting..."and then "disconnected".
everything worked til yesterday....and now...i need it and it doesn't ;[

I don't see networks too when scanning, only remembered ones

dimitars84 said:
I don't see networks too when scanning, only remembered ones
Click to expand...
Click to collapse
oh, ok. i'm going to try out an other rom now and tell you if all is good

[Q] DVP not recognising home WiFi anymore.

Hi, I recently bought a 16Gb DVP on WinMo7 and for three weeks had no Wifi problems at all. It recently stopped finding my home WiFi router.It finds both neigbours routers but mine is missing from the list.
I then got an update notification for the Mango update which I competed. the router didn't return in my list of networks immediately but about two days after.
It has now dissapeared again but 'Mango' has the added 'Advanced' button to see 'known neworks'. My home router is in this lst but I cant access the settings or force any paring.
I've tried the obvious of turning it off and on. I've reset my router, reset my phone back to a clean boot of windos 7.5 (mango) and still no results for finding my router. All the other phones in the house and all laptops find it fine so I can only presume it is the DVP.
Details:
OS version - 7.10.7720.68
Firmware Version - 2250.1800.7720.219
Don't know if this helps.
Does anyone hav any idea why and what I can do to resolve it.
thanks
Jock

Try changing the SSID (name of your wireless network) to something else and see if your DVP can see it and make sure the SSID is not hidden.

Thanks, tried that last night. No luck I'm afraid.
On the router admin now and It's all as it should be fom my service provider settings.
I have a full signal of my neighbours router and just don't understand why it's chosen mine to not even find. When it appeared last time it was after turning the router off all night. I tried that again last night but it didn't appear this morning when I turned it back on.
Confused !!!
Jock

have you been able to connect to and maintain future connections to other wireless networks? if the same problems happens with other networks, I'd run a factory restore on your phone as it seems there might be a software issue. However if you can connect and then are able to re-establish a Wifi connection to other networks then I'm stumped!

I've just changed the SSID to something completely different and it's appeared and I'm now connected again.
All I can say is that it connects to the router for around a week and then the network dissapears.
Short of changing the name every 7-10 days I can't really see another resolve.
In answer to your other question, I haven't really used it on other networks.
I'll see how it goes with this new name.
Thanks for all your help and suggestions
Jock

After reading other posts, this might be an issue with the .219 firmware that you are on. Just keep checking for updates. You could try a hard reset of the phone and then a reboot of the router
Also make sure your router is set to either B or G mode. Check my post here: http://forum.xda-developers.com/showthread.php?t=1324949

Thanks, I did a hard reset when it first went off, still found nothing when it re-booted. I'll keep an eye out for the firmware update.
Thanks again.

My phone just started doing this as well. Very frustrating as I cant download large updates and I dont want to exceed my data cap. I am totally fed up with this phone!

Fixed. Called Dell. Long press network name. Press delete. Press network name when it shows again. Reenter password. Works!

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...