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i loose network connection after time

yo,
i tried stock, cm and vanir rom but on all i lose my network connection after time and have to reboot before i get new data network login. Is there any fix or custom rom to solve it.
Currently use vanir 4.3 stable and iodak 8,5 but i keeps losing connection.

xxlocalxx said:
yo,
i tried stock, cm and vanir rom but on all i lose my network connection after time and have to reboot before i get new data network login. Is there any fix or custom rom to solve it.
Currently use vanir 4.3 stable and iodak 8,5 but i keeps losing connection.
Click to expand...
Click to collapse
this sound like the start of the problem i have. it started with the signal dropping and a reboot fixed it. after a few days i lost all signal and iv never been able to get it back. iv tried changing baseband gone back to stock changed the RIL and nothing has worked. ive pretty much given up on finding a fix.
i am seeing this problem pop up more and more i really hope someone is able to find a fix.

similar problem here. it happens if I leave wifi area without switching wifi off. Effect: high battery drain, sporadically network "locks" and broken sync (reddish network symbol in quick settings). I'm on cm 11 actual nightly,. tried other roms without success.
Fiddling with some settings, but only way to get a temporary fix: reboot to recovery, wipe cache an dalvik, reboot. Afterwards got sync and network (symbol white).

We can only guess at what the issue is, without logs

JoinTheRealms said:
We can only guess at what the issue is, without logs
Click to expand...
Click to collapse
Off corse, will prepare the device and submit next time, I run into issues...

i dunno how to make logs
and on mine it can only be fixed with a reboot

xxlocalxx said:
i dunno how to make logs
and on mine it can only be fixed with a reboot
Click to expand...
Click to collapse
No harm in searching the web and learning something new, right?
Sent from my Nexus 7 using xda app-developers app

[Q] Xperia Z 6603, 10.3.1.A.0.244/ 10.3.1.A.2.67 - mobile data problem

Hello All,
I am afraid this not is going to be a short and easy story... I will try to be short
After the Stock update to 4.4.2 i got finally fed up with the fact that the long awaited KitKat drains battery like a power addict and decided to go back to stock 4.2.2 - which, for me, solves two problems - in this version the Bluetooth connectivity in my car works properly and the battery is used more 'soberly' as well as that I can easily root it and clear all the bloatware.
I found several stock versions of 4.2.2 - e.g. C6603_10.3.1.A.0.244_Generic NCB.ftf, C6603_10.3.1.A.0.244_CE.ftf, C6603_10.3.1.A.2.67_CE.ftf
After flashing them with the latest flashtool everything seems fine - battery, bluetooth,wifi etc. BUT the mobile data has the following problem: the phone connects to 4G, 3G and GPRS, but apart from Youtube none of the applications is able to use the Internet connection from the mobile operator. This to me seems like a problem with DNS resolution but I do not have any firewalls etc. installed or activated.
It may be worth mentioning that when Chrome tries to connect to a web address (e.g. xyz) for an instant there is a message on the screen "Redirecting you to xyz web address", maybe this is the place where it goes wrong? Needles to say that the connection to the specified website is not possible because "Chrome could not find the xyz page"... (this does not happen on wifi connection).
I would be very grateful if U could suggest a way out !

Have you tried downloading the Internet setting ?
at setting -> xperia -> Internet setting.

Orangewanted said:
Have you tried downloading the Internet setting ?
at setting -> xperia -> Internet setting.
Click to expand...
Click to collapse
Hi,
I reloaded the Internet settings from my operator several times, also changed to another sim. What is really puzzling is that Youtube has no problem with connecting. There is something funny going on with the DNS service I suppose....
Any thoughts ?
Thx

barbacan said:
Hello All,
I am afraid this not is going to be a short and easy story... I will try to be short
After the Stock update to 4.4.2 i got finally fed up with the fact that the long awaited KitKat drains battery like a power addict and decided to go back to stock 4.2.2 - which, for me, solves two problems - in this version the Bluetooth connectivity in my car works properly and the battery is used more 'soberly' as well as that I can easily root it and clear all the bloatware.
I found several stock versions of 4.2.2 - e.g. C6603_10.3.1.A.0.244_Generic NCB.ftf, C6603_10.3.1.A.0.244_CE.ftf, C6603_10.3.1.A.2.67_CE.ftf
After flashing them with the latest flashtool everything seems fine - battery, bluetooth,wifi etc. BUT the mobile data has the following problem: the phone connects to 4G, 3G and GPRS, but apart from Youtube none of the applications is able to use the Internet connection from the mobile operator. This to me seems like a problem with DNS resolution but I do not have any firewalls etc. installed or activated.
It may be worth mentioning that when Chrome tries to connect to a web address (e.g. xyz) for an instant there is a message on the screen "Redirecting you to xyz web address", maybe this is the place where it goes wrong? Needles to say that the connection to the specified website is not possible because "Chrome could not find the xyz page"... (this does not happen on wifi connection).
I would be very grateful if U could suggest a way out !
Click to expand...
Click to collapse
manually flash 4.3
check whether it rectifies issues
after that manually flash 4.4.2 without data wipe

androidtweaker1 said:
manually flash 4.3
check whether it rectifies issues
after that manually flash 4.4.2 without data wipe
Click to expand...
Click to collapse
Hello - thanks for this attempt, but unfortunately no luck with it. Here is what I did (please check if I understood you correclty):
1) downloaded - C6603_10.4.1.B.0.101_CE.ftf (4.3)
2) flashed 4.3.(above) with Flashtool (wiping all)
3) restarted - mobile data could be accessed by Chrome and other apps
4) flashed 4.2.2 ver 10.3.1.A.0.244 and then 10.3.1.A.2.67 with the data wipe disabled,
Result - again in 4.2.2 the mobile data is not available to apps other than Youtube ...
Any more thoughts on this?
Thanks again !

barbacan said:
Hello - thanks for this attempt, but unfortunately no luck with it. Here is what I did (please check if I understood you correclty):
1) downloaded - C6603_10.4.1.B.0.101_CE.ftf (4.3)
2) flashed 4.3.(above) with Flashtool (wiping all)
3) restarted - mobile data could be accessed by Chrome and other apps
4) flashed 4.2.2 ver 10.3.1.A.0.244 and then 10.3.1.A.2.67 with the data wipe disabled,
Result - again in 4.2.2 the mobile data is not available to apps other than Youtube ...
Any more thoughts on this?
Thanks again !
Click to expand...
Click to collapse
Another solution will be root the 4.2.2 using easyroot
flash prerooted 4.4.2
download no frills cpu from playstore and under-clock the processor a bit it will greatly improve battery life.I am doing the same :good:

androidtweaker1 said:
Another solution will be root the 4.2.2 using easyroot
flash prerooted 4.4.2
download no frills cpu from playstore and under-clock the processor a bit it will greatly improve battery life.I am doing the same :good:
Click to expand...
Click to collapse
OK - So I see where we have a misunderstanding ... I wanted to go back to 4.2.2. which worked fine for me for the small exception of the mobile data transmission but not go up to 4.4.2.
I am looking for a solution to make the 4.2.2. work with data transmission.
Could you give this a thought ? I would appreciate it a lot!
Regards!

barbacan said:
OK - So I see where we have a misunderstanding ... I wanted to go back to 4.2.2. which worked fine for me for the small exception of the mobile data transmission but not go up to 4.4.2.
I am looking for a solution to make the 4.2.2. work with data transmission.
Could you give this a thought ? I would appreciate it a lot!
Regards!
Click to expand...
Click to collapse
I gave 4.4.2 solution because the data issue is sufficing in 4.2.2 repeatedly
and from what i had read the only issue you had with 4.4.2 was battery drain so gave you a solution for 4.4.2 :silly:

androidtweaker1 said:
I gave 4.4.2 solution because the data issue is sufficing in 4.2.2 repeatedly
and from what i had read the only issue you had with 4.4.2 was battery drain so gave you a solution for 4.4.2 :silly:
Click to expand...
Click to collapse
Your help is very much appreciated!
The reason I keep trying with 4.2.2 is that I am also struggling with the bluetooth issue: on anything above 4.2.2. - simply does not connect to my car's buletooth handsfree....
Thanks anyway. I need to decide whether I have the bluetooth and no mobile data or mobile data and no bluetooth, Seems like Sony is not too generous ...

barbacan said:
Your help is very much appreciated!
The reason I keep trying with 4.2.2 is that I am also struggling with the bluetooth issue: on anything above 4.2.2. - simply does not connect to my car's buletooth handsfree....
Thanks anyway. I need to decide whether I have the bluetooth and no mobile data or mobile data and no bluetooth, Seems like Sony is not too generous ...
Click to expand...
Click to collapse
Have u given 4.3 a try?
Edit ignore this

androidtweaker1 said:
Have u given 4.3 a try?
Click to expand...
Click to collapse
Yes:
4.3 - mobile data is ok, bluetooth not compatible with my car ... :crying:
When I tried to flash 4.2.2. over 4.3 without wiping data I got bootloped...
Thanks for trying to help !
Do you think that there is a way to use the bluetooth functionality from 4.2.2 on 4.3? How could it be done?

barbacan said:
Yes:
4.3 - mobile data is ok, bluetooth not compatible with my car ... :crying:
When I tried to flash 4.2.2. over 4.3 without wiping data I got bootloped...
Thanks for trying to help !
Do you think that there is a way to use the bluetooth functionality from 4.2.2 on 4.3? How could it be done?
Click to expand...
Click to collapse
Maybe you can try flashing the 4.2.2 via flashtool (wipe everything) to solve this problem, please give it try.
Actually, 4.3 works without bugs so far and have no thoughts about what causes this problem.

Orangewanted said:
Maybe you can try flashing the 4.2.2 via flashtool (wipe everything) to solve this problem, please give it try.
Actually, 4.3 works without bugs so far and have no thoughts about what causes this problem.
Click to expand...
Click to collapse
Hello - thanks! I tried complete wipe/flash of 4.2.2 and that's where my problem is - 4.2.2 data transmission in mobile is lost whereas on 4.3 or above my bluetooth does not communicate with my car's handsfree (this issue is being reported by many users after upgrade to 4.3.)
So I am stuck ... for the moment I am staying on 4.3 and getting really tired of this whole Xperia stuff

barbacan said:
Hello - thanks! I tried complete wipe/flash of 4.2.2 and that's where my problem is - 4.2.2 data transmission in mobile is lost whereas on 4.3 or above my bluetooth does not communicate with my car's handsfree (this issue is being reported by many users after upgrade to 4.3.)
So I am stuck ... for the moment I am staying on 4.3 and getting really tired of this whole Xperia stuff
Click to expand...
Click to collapse
Hello barbacan! I've got exactly the same situation here. I was on 4.2.2 becouse it was latest firmware that worked with my car (Opel Insignia DVD800). A week ago I had motherboard failure, so I send my phone for a replacement. I received a brand new one with 4.4.2 installed which of course didn't communicate with my car. So I flashed exactly the same 4.2.2 file which I use with previous phone, but this time data transmission did not work. When I upgraded to 4.4.2 transmission was back again. I think Sony have changed something in newer phones hardware and they are not compatible with older firmwares. I've been serching for a few days, but couldn't find any solution...

Ok, I think I have found the solution. Changing APN settings from default IPv6 to IPv4 resolved the issue for me. Just change it in settings, save, reboot the phone and data transfer works again!

mazurczakm said:
Ok, I think I have found the solution. Changing APN settings from default IPv6 to IPv4 resolved the issue for me. Just change it in settings, save, reboot the phone and data transfer works again!
Click to expand...
Click to collapse
Hello !
Thanks for the suggestion - I will surely give it a try. Your solution sounds very promising !

SUCCESS !!!
mazurczakm said:
Ok, I think I have found the solution. Changing APN settings from default IPv6 to IPv4 resolved the issue for me. Just change it in settings, save, reboot the phone and data transfer works again!
Click to expand...
Click to collapse
THANKS A LOT!
This is the solution.
I was suspecting something to do with DNS services but did not realize that Adroid 4.2.2. does not have IPV6 support. Now that I changed my APN from "InternetIPV6" to plain "Internet" the phone works like a charm. I will not be tempted to upgrade at any price

barbacan said:
THANKS A LOT!
This is the solution.
I was suspecting something to do with DNS services but did not realize that Adroid 4.2.2. does not have IPV6 support. Now that I changed my APN from "InternetIPV6" to plain "Internet" the phone works like a charm. I will not be tempted to upgrade at any price
Click to expand...
Click to collapse
I'm very glad it works for you also!

[Q] Tethering Problem

Hey guys,
I have a Z1 C903, which doesn't work as a wifi tether nor bluetooth tether. I can turn it on, and other devices can see it, however when trying to connect, the signal drops completely.
If I wait the signal will restart and become full strength, where I will need to manually connect, which proceeds to the signal disappearing again. I've tried unsecure, wpa2, wpa to which I have no luck either. Devices such as laptop will say limited connection, whereas android tablets and phones will refuse to connect and will say "Saved, secured with WPA2" or something else if i change the password method.
I've tried searching for any reports of wifi tethering not working, but the problems seem to be different from my situation.
More details on my device:
It has an unlocked bootloader
Now running Paranoid android
Problem occurred on stock 4.3, nut 4.4 (I assumed it was a glitch on Sony's drivers, and have waited for months now for a patch)
Could a faulty TA do this?
Any ideas?
Am I f***ed?
Cheers

ch33bs said:
Hey guys,
I have a Z1 C903, which doesn't work as a wifi tether nor bluetooth tether. I can turn it on, and other devices can see it, however when trying to connect, the signal drops completely.
If I wait the signal will restart and become full strength, where I will need to manually connect, which proceeds to the signal disappearing again. I've tried unsecure, wpa2, wpa to which I have no luck either. Devices such as laptop will say limited connection, whereas android tablets and phones will refuse to connect and will say "Saved, secured with WPA2" or something else if i change the password method.
I've tried searching for any reports of wifi tethering not working, but the problems seem to be different from my situation.
More details on my device:
It has an unlocked bootloader
Now running Paranoid android
Problem occurred on stock 4.3, nut 4.4 (I assumed it was a glitch on Sony's drivers, and have waited for months now for a patch)
Could a faulty TA do this?
Any ideas?
Am I f***ed?
Cheers
Click to expand...
Click to collapse
Flash your phone by flash tools including wipe apps log and cache and system
It should solve your problem
And of course first re-lock your BL and flash to stock Rom
Sent from my C6903 using Tapatalk

Sorry about late reply, I am out in urban areas without internet connection. I'll try doing this tonight.
Am I right in assuming all Z1 CM ROMs have this problem, if I must install a stock-based ROM?
SaeedFazlollahzadeh said:
Flash your phone by flash tools including wipe apps log and cache and system
It should solve your problem
And of course first re-lock your BL and flash to stock Rom
Sent from my C6903 using Tapatalk
Click to expand...
Click to collapse

ch33bs said:
Sorry about late reply, I am out in urban areas without internet connection. I'll try doing this tonight.
Am I right in assuming all Z1 CM ROMs have this problem, if I must install a stock-based ROM?
Click to expand...
Click to collapse
Oh, sorry I forgot to tell you
You should use stock rom
http://forum.xda-developers.com/showthread.php?t=2469191&page=145
Go here and fun your phone model and download the version and region you want
Sent from my C6903 using Tapatalk

You can try to change the name of your phone (Network SSID) to a simpler form instead of default.

I got it working
I got it working thanks to your suggestion, Saeed.
I flashed the stock ftf from the mega thread and that restored my tethering capabilities. I then proceeded to reinstall the ParanoidRom and now the tethering works as well.
I'm not sure what happened, but I'd assume something went wrong when upgrading to 4.3 and the problem stayed when I then upgraded again to 4.4 and then to paranoid.
Thanks

XT1058 dead?WiFi

Hi guys i have a story to tell you... my WiFi doesn't work on XT1058 5.1... i thought was a Lollipop related issue so wanted to downgrade to 4.4.4 and see if the problem really was related to android version, but it isn't. I downgraded successfully from 5.1 to 4.4.4 with your tutorial, but the WiFi problem persist. Now i know i'm really screwed up becouse i tried i believe everything possible...
- Airplane mode
- Factory reset
- Cache wipe
- Full wipe
- Custom rom
- Custom kernel
- Android 4.4.4
- Different AP's and routers
- Delete wpa supplicant conf...
So i don't know what to do. Te specific problem is that WiFi can see available networks, but randomly some of them disappear and others show up, and when i try to connect for ex. to my home network, it says "connecting" and then "saved", with all networks happens the same. Does anyone has a clue, or maybe somebody in the same situation?

I have similar problem before. I tried returned to full 4.4.2 stock and no go.
In the end , I send it to moto and they replace me a new one which costs me 100 bucks.
I think It could be a hardware problem and might caused by running wifi hotspot too often...
Sent from my XT1053 using Tapatalk

Wifi dropping intermittently after Oreo update

Hey,
I'm on stock unrooted Oreo and my wifi has been losing signals (sometimes, it shows signals but internet doesn't work).
While any other phone nearby it works fine which means there's no wifi range issue.
It all started after Oreo update.
Anyone else facing the same? Any solution/suggestion for it, please?

tarun0 said:
Hey,
I'm on stock unrooted Oreo and my wifi has been losing signals (sometimes, it shows signals but internet doesn't work).
While any other phone nearby it works fine which means there's no wifi range issue.
It all started after Oreo update.
Anyone else facing the same? Any solution/suggestion for it, please?
Click to expand...
Click to collapse
Flash your device again with oreo before that do factory reset from setting menu and check your issue again ,do not do hard reset It won't help

cobrarated said:
Flash your device again with oreo before that do factory reset from setting menu and check your issue again ,do not do hard reset It won't help
Click to expand...
Click to collapse
So, I'll have to root it. Wipe all data etc before that?
If yes, can all apps and system settings - passwords/pin/fingerprint/ gont etc be backed up somehow (like in Google drive itself)?

yes i am also facing same issue.

tarun0 said:
So, I'll have to root it. Wipe all data etc before that?
If yes, can all apps and system settings - passwords/pin/fingerprint/ gont etc be backed up somehow (like in Google drive itself)?
Click to expand...
Click to collapse
No you don't have to root your device

same issue here. restart mostly fixes it. putting mobile networks on 3g does not help (in the beginning it did). the right wifi network is found, but it cannot connect. sometimes even it says disconnected. any help? (all stock here)