[SOLVED]wifi Authentication Error Occurred - Galaxy S II Q&A, Help & Troubleshooting

I have a galaxy s2 no brand with android 4.1.2 official never rooted and never recovery installed, and from December I connect without problems, is a week I get this error"Authentication error occurred" with all modem and if i use the 3g connection desn't work... i use avg antivirus, in all life of my phone i istalled apk only from playstore. please help me

Edoardo001 said:
I have a galaxy s2 no brand with android 4.1.2 official never rooted and never recovery installed, and from December I connect without problems, is a week I get this error"Authentication error occurred" with all modem and if i use the 3g connection desn't work... i use avg antivirus, in all life of my phone i istalled apk only from playstore. please help me
Click to expand...
Click to collapse
Hmm.. authentication error occurs when the wifi password is wrong on your phone. If somebody changed the password on the modem also this can happen, and I don't know about avg but does it have 3g data management? And are you saying that Mobile Data is not working?
And FYI try a factory reset of your phone, it would most likely fix your problem.
Sent from my GT-I9100 using xda app-developers app

Your router could not be working as it should. If what was suggested above doesnt work, reset both modem and router.
Sent from the little guy

Thanks for your help guys but i have this error for all modem, nobody changed the wifi key it's only mine other devices works well. using data 3g in the status bar appear the logo but only the green arrow, the orange arrow doesn't appear

Edoardo001 said:
Thanks for your help guys but i have this error for all modem, nobody changed the wifi key it's only mine other devices works well. using data 3g in the status bar appear the logo but only the green arrow, the orange arrow doesn't appear
Click to expand...
Click to collapse
Did you try a factory reset of your phone? So your red arrow ain't working huh? It means that you are not receiving any data.. Could be a slight error or something wrong with the receiver? Can you make proper calls?
Sent from my GT-I9100 using xda app-developers app

Solved my two modem have bloccked my phone mac addres, i not understand the matter! i haven't touch nothing thanks guys, and scuse me for your wasted time

solved
Edoardo001 said:
I have a galaxy s2 no brand with android 4.1.2 official never rooted and never recovery installed, and from December I connect without problems, is a week I get this error"Authentication error occurred" with all modem and if i use the 3g connection desn't work... i use avg antivirus, in all life of my phone i istalled apk only from playstore. please help me
Click to expand...
Click to collapse
i had the same problem . i just changed my wifi channel from 6 to 8 just do the same put your channel 5 or 7 or 8 and evrything will be fine if you dont know how to accesse your router just tell me my wifi connecting all the time without any error good luck

The solution that worked for me was to change the security settings on my router, from just WPA2 to WPA2/WPA. I had tried changing channels and frequencies, as well as my device name.

Related

having quite a serious issue with the vibrant wifi

I have this issue with wifi. It's that when I'm at home, it won't connect at all to my wifi all I get is obtaining address and eventually unsuccesful, yet occasionally it does work. Then, when using other wifis, turning on wifi does make it connect and show the icon in the notification bar, but still, it won't always work. I try to get into the market but it says no network or something like that. Tried most web browsers, nothing works too. What can I do? My phone is rooted and flashed with bionix fusion rom, evn though this problem sometimes happened even with stock firmware, rooted and not rooted. What can I do? Can't really get a replacement because i bought it from overseas. HELP!!
Chrsp said:
I have this issue with wifi. It's that when I'm at home, it won't connect at all to my wifi all I get is obtaining address and eventually unsuccesful, yet occasionally it does work. Then, when using other wifis, turning on wifi does make it connect and show the icon in the notification bar, but still, it won't always work. I try to get into the market but it says no network or something like that. Tried most web browsers, nothing works too. What can I do? My phone is rooted and flashed with bionix fusion rom, evn though this problem sometimes happened even with stock firmware, rooted and not rooted. What can I do? Can't really get a replacement because i bought it from overseas. HELP!!
Click to expand...
Click to collapse
Some routers are a tad dodgy, so it may not be the phone at all. Since we dont know what type of router or what sort of connection environment your in (how many wifi connections it's handling, etc...) it's hard to say. Still it's easier to replace a $30 router than it is a several hundred $$$ phone.
I said in the post itself that I tried more than one wifi aka router, most of them connected to a laptop and my phone at a certain time. Therefore I doubt the issue is the router. I think it's a bug. Is there no fix for this?
This is kind of a shot in the dark, but have you tried putting the phone in Airplane mode and then restarting the Wi-Fi? I've found that the cell data connection can sometimes interfere with my Wi-Fi.
Chrsp said:
I have this issue with wifi. It's that when I'm at home, it won't connect at all to my wifi all I get is obtaining address and eventually unsuccesful, yet occasionally it does work. Then, when using other wifis, turning on wifi does make it connect and show the icon in the notification bar, but still, it won't always work. I try to get into the market but it says no network or something like that. Tried most web browsers, nothing works too. What can I do? My phone is rooted and flashed with bionix fusion rom, evn though this problem sometimes happened even with stock firmware, rooted and not rooted. What can I do? Can't really get a replacement because i bought it from overseas. HELP!!
Click to expand...
Click to collapse
I would put my money on the router, I have not seen anyone else complain about this who is running bionix. So a bug within bionix, I'm going to say no.
HOWEVER!!!!!! I had the same problem for a while. I have AT&T uverse and there 2WIRE router is total crap... I had the same exact problems as you PLUS it would not connect to my mac mini for more then a few seconds. I hooked up an older router I had laying around and BAM no more issues.
I got the same problem, but my phone is not rooted or flashed. Must be a system/software problem.
Sent from my SGH-T959 using XDA App
cancermeetscorpio said:
I got the same problem, but my phone is not rooted or flashed. Must be a system/software problem.
Sent from my SGH-T959 using XDA App
Click to expand...
Click to collapse
No really people, It's the routers you are using... not the phone...

WiFi crashing

Hi guys,
I'm running 4.1.B.0.431 pure stock (no root/never flashed anything) firmware and I'm experiencing this bug - every time I try to connect to any (and I mean ANY - I tried tens of WPA2, WEP and Open networks), it will connect at first (with good signal strenght as I always tried it standing next to the router if it was a problem with signal) but immediately disconnect and then won't even find that network that I connected to before, I have to wait a minute or two to find it again, but then the procedure repeats.
Can anyone help me ?
P.S. : there is no problem with router as I tried changing every single option on my home network, upgrading firmware of router and entering my MAC,nothing helped.. I also tried lots of other networks so I assume the problem will be in my phone, but - where ?
Thank you very, very much.
amozonesk said:
Hi guys,
I'm running 4.1.B.0.431 pure stock (no root/never flashed anything) firmware and I'm experiencing this bug - every time I try to connect to any (and I mean ANY - I tried tens of WPA2, WEP and Open networks), it will connect at first (with good signal strenght as I always tried it standing next to the router if it was a problem with signal) but immediately disconnect and then won't even find that network that I connected to before, I have to wait a minute or two to find it again, but then the procedure repeats.
Can anyone help me ?
P.S. : there is no problem with router as I tried changing every single option on my home network, upgrading firmware of router and entering my MAC,nothing helped.. I also tried lots of other networks so I assume the problem will be in my phone, but - where ?
Thank you very, very much.
Click to expand...
Click to collapse
Have you tried performing factory reset?
Sent from my WT19i using xda app-developers app
rachit.rc96 said:
Have you tried performing factory reset?
Sent from my WT19i using xda app-developers app
Click to expand...
Click to collapse
not yet, but I don't want to lose my apps and don't have any other backup method - I would go for that only if it was really the solution.
You can backup your apps via android assistant.. Also you can backup contacts via Google about..
Sent from my WT19i using xda app-developers app
not attempt to do this go to settings-wifi-advanced-mode Wi-tick the suspension ever. I had a w8 when used to give me that error but solved with this configuration. :good:

Xperia U: very weird wifi problem

My girlfriends XU is acting up ultimately weird..
Since some time we have this problem:
Wi-Fi only works for about 3 minutes when connecting to a wifi signal, yet the wifi signal icon indicates as if it has a good connection. The only way to regain connection again is to reboot, but then the same problem repeats itself, after a few minutes wi-fi is not working anymore. Also in the wifi-indicator the "send" arrow works, the "receive" arrow doesn't.
Basically if you want to discover a new wi-fi connection you need to reboot the phone also, because otherwise the previous connected wi-fi signal remains (it freezes as stated before after about 3 minutes).
Tried a factory reset already.. Didn't work. The phone runs the stock sony android 4.0.4.
Any idea's ?
wtr_dhd said:
My girlfriends XU is acting up ultimately weird..
Since some time we have this problem:
Wi-Fi only works for about 3 minutes when connecting to a wifi signal, yet the wifi signal icon indicates as if it has a good connection. The only way to regain connection again is to reboot, but then the same problem repeats itself, after a few minutes wi-fi is not working anymore. Also in the wifi-indicator the "send" arrow works, the "receive" arrow doesn't.
Basically if you want to discover a new wi-fi connection you need to reboot the phone also, because otherwise the previous connected wi-fi signal remains (it freezes as stated before after about 3 minutes).
Tried a factory reset already.. Didn't work. The phone runs the stock sony android 4.0.4.
Any idea's ?
Click to expand...
Click to collapse
I have the same problem with xperia p...It started after the last update.Also when it connects to a network,i can' t turn off wifi,i have to rebbot the phone...I' m wainting the jelly bean update.. :-/
Maybe check router settings, I had turned only one mode on, after enabling "mixed" (802.11g AND 802.11b) it worked fine...
Daniel_NL said:
Maybe check router settings, I had turned only one mode on, after enabling "mixed" (802.11g AND 802.11b) it worked fine...
Click to expand...
Click to collapse
This is not a solution,because many of users use it most at public hot spots.At home,i prefer my pc...
orfeas16speedy said:
This is not a solution,because many of users use it most at public hot spots.At home,i prefer my pc...
Click to expand...
Click to collapse
Alright, sry then, can't help any further...
Does it happen with all routers or only with your router?
Have you tried to repair using SUS?
Someone one the official forum had a similar problem and it was fixed by repairing the phone using SUS.
Xpme said:
Does it happen with all routers or only with your router?
Have you tried to repair using SUS?
Someone one the official forum had a similar problem and it was fixed by repairing the phone using SUS.
Click to expand...
Click to collapse
With pretty much all routers yes..
any solution about wifi problem?? tired change wep to wpa.. stil cant use wifi at home.
Try changing the kernel.
Sent from my ST25i using xda app-developers app
try to flash another kernel with flashtool or go back to the stock kernel

[Q] wifi range problems..

hi there,
i am currently using samsung official rom 4.3, and there is problem about my wifi..
the problem is a bit weird. where i only able to connect and use my wifi whenever i am near my wifi routers. or else i fail to connect. (when i click connect from far away the wifi signal become zero bar from full bar and then it is full again)
i tried many solution from XDA forum, googling & flashing alot of rom (official & custom) and yet the problem still there..
i hope someone could help me because this problem is annoying.. it work just fine before.. one morning when i wake up and then this problem suddenly occurred.
Do you get good reception on public wifi (e.g. Mcdonalds wifi)?
ArkThompson said:
Do you get good reception on public wifi (e.g. Mcdonalds wifi)?
Click to expand...
Click to collapse
yes i tried but same result
Have you tried this guide? http://forums.androidcentral.com/sprint-galaxy-s-iii/225958-wi-fi-power-save-mode.html
Mr H said:
hi there,
i am currently using samsung official rom 4.3, and there is problem about my wifi..
the problem is a bit weird. where i only able to connect and use my wifi whenever i am near my wifi routers. or else i fail to connect. (when i click connect from far away the wifi signal become zero bar from full bar and then it is full again)
i tried many solution from XDA forum, googling & flashing alot of rom (official & custom) and yet the problem still there..
i hope someone could help me because this problem is annoying.. it work just fine before.. one morning when i wake up and then this problem suddenly occurred.
Click to expand...
Click to collapse
Try to flash a new modem (I suggest you DL8).
Note that you have first to root the device before flash it with Odin.

Losing mobile data connection randomly on MIUI 11 EU Android 10

So i have a clean flashed EU ROM and i randomly lose mobile data connection (4G) for a few seconds and it then comes back. I don't lose the mobile network, but the 4G data sign just vanishes and then comes back again in a flash. This is really annoying especially while playing online games where 1 sec of internet disconnection is the difference between a win and a loss.
I'm on MIUI 11 EU ANDROID 10.
Stock kernel
Magisk 20.3
Official TWRP
Anyone ?
MasterFURQAN said:
Anyone ?
Click to expand...
Click to collapse
I am using Miui 11.0.4.0, my mobile data totally stop working yesterday. There is 3G, 4G and even Edge signal but no internet. Wipe cache/dalvik and change kernel doesn't work. Ended up I reinstall 11.0.4.0 and it works back again
jyaki2 said:
I am using Miui 11.0.4.0, my mobile data totally stop working yesterday. There is 3G, 4G and even Edge signal but no internet. Wipe cache/dalvik and change kernel doesn't work. Ended up I reinstall 11.0.4.0 and it works back again
Click to expand...
Click to collapse
I too dirty flashed the ROM again and it worked without any problems for sometime and then out of nowhere it started to do this again. I hope it doesn't affect you as well but it looks like it most probably will. :crying:
Might be this will be helpful. What I noticed in Stock Miui 11.0.4 when the wifi calling is ON then I noticed call drops. So I have turned off the wifi calling and using the VOLTE only and everything is fine. I think wifi calling technology is not yet stable enough to use. We need to wait for some more. So you may try this thing. Turn off wifi Calling and set data roaming to always and see if it fix the problem.
Experiencing something similar mobile data is gone
mrmanuri said:
Might be this will be helpful. What I noticed in Stock Miui 11.0.4 when the wifi calling is ON then I noticed call drops. So I have turned off the wifi calling and using the VOLTE only and everything is fine. I think wifi calling technology is not yet stable enough to use. We need to wait for some more. So you may try this thing. Turn off wifi Calling and set data roaming to always and see if it fix the problem.
Click to expand...
Click to collapse
I did that on the first boot but to no Vail. Currently I downloaded the latest vendor from akhilnarang's website to see if it is a vendor problem. Everything I tried before has done nothing.
memeko said:
Experiencing something similar mobile data is gone
Click to expand...
Click to collapse
Are you on EU version like me or the stock global ?
I received the update last week on stock rom in EU. Since then severe problems with mobile data, it only works in cities where 4G+ is available. 4G, 3G and E don't work at all or only rarely.
Does someone have a solution to that? BTW also my camera is broken since the update. After every picture it says "processing HDR+" forever (even showing a notification for that that never disappears). My proximity sensor also has some problems... Never change a running system I guess.
uPrizZ said:
I received the update last week on stock rom in EU. Since then severe problems with mobile data, it only works in cities where 4G+ is available. 4G, 3G and E don't work at all or only rarely.
Does someone have a solution to that? BTW also my camera is broken since the update. After every picture it says "processing HDR+" forever (even showing a notification for that that never disappears). My proximity sensor also has some problems... Never change a running system I guess.
Click to expand...
Click to collapse
There doesn't seem to be any fix (none that I know of until now). Till now I tried reflashing the ROM, installing the akhilnarang vendor and now I'm testing LTE band locking using network signal guru.
It might just be a placebo effect, but I think flashing the vendor somewhat reduced the problems with mobile data. You should give it a try and give feedback here.
Is it possible to downgrade again by a dirty flash?
uPrizZ said:
Is it possible to downgrade again by a dirty flash?
Click to expand...
Click to collapse
I wouldn't recommend dirty flashing Android 9 ROMs over 10. Yo should clean flash.
MasterFURQAN said:
I wouldn't recommend dirty flashing Android 9 ROMs over 10. Yo should clean flash.
Click to expand...
Click to collapse
Well great now I noticed I cannot even connect my phone to the computer, because it says "failed to get information from usb device" in the device manager. Tried installing and uninstallting several ADB drivers and the MI Pc Suite but nothing fixes the problem. Guess I can throw the phone out of the window now.
BTW: Is there no ****ing official website with usb drivers? All I get are websites like "xiaomidriverdownload.com" or "androidusbdrivers.com" or "flashxiaomi.com" wtf is this.
uPrizZ said:
Well great now I noticed I cannot even connect my phone to the computer, because it says "failed to get information from usb device" in the device manager. Tried installing and uninstallting several ADB drivers and the MI Pc Suite but nothing fixes the problem. Guess I can throw the phone out of the window now.
BTW: Is there no ****ing official website with usb drivers? All I get are websites like "xiaomidriverdownload.com" or "androidusbdrivers.com" or "flashxiaomi.com" wtf is this.
Click to expand...
Click to collapse
Check the "bootloader unlock" thread. It has links to all the drivers/ utilities you'll need
uPrizZ said:
Well great now I noticed I cannot even connect my phone to the computer, because it says "failed to get information from usb device" in the device manager. Tried installing and uninstallting several ADB drivers and the MI Pc Suite but nothing fixes the problem. Guess I can throw the phone out of the window now.
BTW: Is there no ****ing official website with usb drivers? All I get are websites like "xiaomidriverdownload.com" or "androidusbdrivers.com" or "flashxiaomi.com" wtf is this.
Click to expand...
Click to collapse
And one question, do you use any VPN ?
Disable "Xiaomi Framework Service"
Same issue for me on a Xiaomi Mi9 Lite with xiaomi.eu rom.
After lots of workarounds tried I finally discovered the cause : "Xiaomi Service Framework".
It's a system app that resets mobile data connection when it detects or thinks there's no internet connection.
I use an intranet apn to connect to my company network, so my phone is not connected to internet when the apn is active and it was really annoying to have those data connection drops.
As I'm not using any Xiaomi Service (mi cloud and others) and my phone is rooted, the solution for me was to disable the app and problem solved!
Good luck
perdigano said:
Disable "Xiaomi Framework Service"
Same issue for me on a Xiaomi Mi9 Lite with xiaomi.eu rom.
After lots of workarounds tried I finally discovered the cause : "Xiaomi Service Framework".
It's a system app that resets mobile data connection when it detects or thinks there's no internet connection.
I use an intranet apn to connect to my company network, so my phone is not connected to internet when the apn is active and it was really annoying to have those data connection drops.
As I'm not using any Xiaomi Service (mi cloud and others) and my phone is rooted, the solution for me was to disable the app and problem solved!
Good luck
Click to expand...
Click to collapse
I have removed "Xiaomi Service Framework" and not solved in my device
MasterFURQAN said:
So i have a clean flashed EU ROM and i randomly lose mobile data connection (4G) for a few seconds and it then comes back. I don't lose the mobile network, but the 4G data sign just vanishes and then comes back again in a flash. This is really annoying especially while playing online games where 1 sec of internet disconnection is the difference between a win and a loss.
I'm on MIUI 11 EU ANDROID 10.
Stock kernel
Magisk 20.3
Official TWRP
Click to expand...
Click to collapse
Hi there!
İve stumbled upon you post. Right now i have xiaomi Mi 9 with stock MİUİ 12.0.3
Since this update İ notice Losing mobile data connection randomly.
i randomly lose mobile data connection (4G) for a few seconds and it then comes back. the 4G data sign along antenna sign just vanishes (greys out) and then comes back again in a second.
İ suppose its very similar to your case. İts getting very frustrating
Have you by any chance got any workaround ?

Categories

Resources