Hey,
I recently got a used Lenovo A7600-F tablet from my office because they weren't using it anyways.
Everything seems to work perfectly fine - except the wifi connection.
Code:
Model: Lenovo A7600-F
Android: 4.4.2 (no further update available for that model)
Kernel: 3.4.67
Build: A7600F_A442_000_029_150401_ROW
Here is the thing:
I disable/enable wifi
I click my home network and enter the password
Nothing happens for ~2 seconds
"Failed to connect to network" (no "connecting" or similar)
To make sure my WPA2 security isn't the problem, I made an unprotected hotspot on my phone. Absolutely identical problem.
One thing I noticed: The tablet is able to find all the networks around me and updates their signal strength in the list without any problems. As soon as I try to connect to one, it takes around 2 seconds until it says "Failed to connect to network". If I then try again, the message pops up instantly with no delay for all networks. From that moment on, the list also stops updating and can't be refreshed until I turn my wifi off and on again.
I downloaded "Wifi Analyzer" and I can see all the networks' strength values moving. I can close the app, do something else or go to standby and come back to see the values still updating. But as soon as I try to connect to a network, it will give that error again, stop updating the list in the wifi section and Wifi Analyzer will not be able to find any more signals. If I close that app and bring it back up now, the list of networks will remain empty. Same with the networklist on the wifi settings. Turning wifi off and on again resets the whole thing.
In short: My tablet sees all networks around me and updates them, but gives an error ("Failed to connect to network") as soon as I try to connect. Then no more wifi updates until i disable/enable it again.
Factory reset did not help, I let the battery drain and charged it back up - no success! I also tried an app called "Wifi Ruler", which was mentioned to fix a similar problem in a post I found on another forum. Connecting through that has exactly the same effect.
Does anybody have an idea about what is going wrong and what else I could try to fix this?
Related
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
Hi guys.
first my wifi became unreliable, it disconnected, didn´t reconnect sometimes etc...
now, it´s not working anymore at all.
when i go to wi-fi settings it says turning on, then the red arrow appears, then immediately it says turning off. down there comes a message "unable to scan for networks"
i searched the whole forum, but didn´t find a simlar problem.
i reseted it to factory, didn´t help.
it can´t be a router problem, ´cause all the other devices on the wifi work, even my friends myt4G.
any tricks or ideas anyone?
i got this form a friend in the states, bought last december, he ment, in the US they have mostly only 90 days warranty, in germany we got 2 years.. is this true..?
stock rom. 2.3
Try chaning the channel on your Wifi Router. Most of the new routers you can go to routerlogin.net from a computer that is connected to the router and change the settings. I had the same problem and it appeared all of my neighbors were using the same channels i was. I move to a different one and haven't had a problem since. It will not affect the SSID or the password So all of your login it stuff will stay the same. Any WAN connected device just might lose signal for a second or two while the router changes channels.
thx. channel was on auto. changed it to 11 out of 13. didn´t help. also, i have only 3 wifis in my neighbourhood, i can get with my pc. on the htc, it shows only mine + the direct neighbour..
it seems that wasn´t he prob here...
could it be a hardwareprob? anyone any knowhow on american warranty?
the wi-fi button is almost not responding anymore.. when i turn it off, it turns itself on again, when i go into wifi settings, ist keeps truning on and off again in an endless loop....
edit: tethering does also not work anymore. when i click on portable wif hotspot, it says error...
hardwarefailure?
i found these guys who have the same problems.
http://community.htc.com/na/htc-forums/android/f/101/p/11557/49097.aspx#49097
seems to be a gingerbreadissue... perhaps i´ll try downgrading first.
so i downgraded to 2.2.1 and it worked. got to bed, woke up, not working anymore "unable to scan for networks" again
My Nexus 4 isn't connecting to wifi. More specifically, if I am connected to a remembered network, my phone does not automatically reconnect when I leave the range then come back into it.
Now, there are 2 wifi networks in the apartment and I've tried both. I actually just "forgot network" on the last remembered network on my phone because I was trying to connect to the better one.
Since I've done that, I am unable to connect to wifi at all, because the only way for me to connect to wifi before was to restart my phone and have it automatically connect to the remembered network.
Now that I don't have a remembered network, I cannot connect to anything, and my Wifi page on my phone will not show any wifi networks available and it won't even give the option to turn on wifi or to refresh the list. I have to reboot my phone, making sure the wifi is off first (using the toggle on the dropdown notification menu), then I can at least refresh the empty list. When I refresh the list, it gives me an error, "WPA failed. Retry in a few minutes."
I need this fixed. I live in a basement apartment and my cell signal is usually unavailable while I'm home.
I was running the AOKP 4.3 milestone when I started having the problem, then went back to stock, put on a 4.4 nightly ROM, had the same problem, then went back to the same 4.3 milestone. Unfortunately, I didn't leave my phone on stock 4.4 long enough to see if the problem persisted there.
Is there anything I can do at this point before going through the process of bringing my phone back to stock again?
Thanks
Update: After restarting my phone some 20 or more times, I was eventually able to see the list of networks and put the password in for the new network. So I at least have wifi now because my phone automatically connects.
However, all the problems stated above are still the same. I lose connection and cannot automatically reconnect when I go out and back into range of the signal, and can only regain the connection when I restart my phone and it automatically connects to the one known network on reboot.
If there's any information or anyway to try to fix it, I'd love to know.
Thanks
For the last week or two I have been unable to connect my phone to wifi networks.
At first the problem would be that I was getting disconnected from any wifi network I joined, now I can't connect at all.
The wifi networks page sometimes (not always) does not detect a strong network even if I am standing a few feet away and the phone has previously connected and other APs are connected and working like my pc
If I try to connect then I get the "Connecting" status followed by "Saved,secured"
I have searched the internet looking for a fix to this and tried wiping the cache partition, forgetting the network, airplane mode toggling on and off, apps that wipe the known network list and some others including lastly a factory reset on the phone but nothing seems to remedy the issue.
From the wifi router I have tried using an unencrypted (open) connection
Now I think I may also be having problems with the bluetooth connecting in the car but I haven't had a chance to really investigate that one yet and it may or may not be related to the last factory reset.
My phone is not rooted.
Build no. LRX21T.G870AUCU2B0F3
kernel3.4.0-4443965
[email protected]#1
Can anyone offer any assistance to my current issue ?
Alan
I have just confirmed that the Bluetooth in my car is not detecting my phone when it scans (the phone bt is switch on and the visible box being checked) so that's both radios with similar issues.
afcal72 said:
For the last week or two I have been unable to connect my phone to wifi networks.
At first the problem would be that I was getting disconnected from any wifi network I joined, now I can't connect at all.
The wifi networks page sometimes (not always) does not detect a strong network even if I am standing a few feet away and the phone has previously connected and other APs are connected and working like my pc
If I try to connect then I get the "Connecting" status followed by "Saved,secured"
I have searched the internet looking for a fix to this and tried wiping the cache partition, forgetting the network, airplane mode toggling on and off, apps that wipe the known network list and some others including lastly a factory reset on the phone but nothing seems to remedy the issue.
From the wifi router I have tried using an unencrypted (open) connection
Now I think I may also be having problems with the bluetooth connecting in the car but I haven't had a chance to really investigate that one yet and it may or may not be related to the last factory reset.
My phone is not rooted.
Build no. LRX21T.G870AUCU2B0F3
kernel3.4.0-4443965
[email protected]#1
Can anyone offer any assistance to my current issue ?
Alan
Click to expand...
Click to collapse
Im having same issue with wifi... sm-g900r4
I just stumbled on a clue, while using an app called 'wifi cleaner' there is a feature allowing you connect to wifi networks within the app. I type in the password, authenticating is shown on the screen followed by "incorrect password".
I know the password to be correct..
Mmm
stephenl80 said:
Im having same issue with wifi... sm-g900r4
Click to expand...
Click to collapse
I was wondering if you ever got this issue fixed?
I thought I had but the problem comes back in a different way.
Sometimes wifi connects but only connects at 5 mbps.
Now wifi will not turn on at all. ( radio button is greyed in settings)
I did find a thread on xda where some Motorola users were having the wifi off issue and it was due to a missing system file which could be replaced on a rooted device. However I don't have root on my s5 g870a and it's not likely I can get it.
I have a Samung Galaxy S4, GT-I9505, Android Version 7.1.2, using LineageOS 14.1-20180309-NIGHTLY-jfltexx. Baseband version: I9505XXSPQA1. Kernel version 3.4.112-Lineage-ge8d93e0
It has worked fine for months. But on the 1st of July, while a friend was borrowing it, it was all of a sudden unable to see any wifi networks. My friend doesn't know what he did to it as he was just trying to connect his wifi. Now I can't find ANY wifi networks. None at all! All other devices in the house can find and connect to wifi networks and to the home wifi network.
I've tried the following:
1) Restarting the phone
2) Turning on airplane mode and looking for wifi networks.
3) Restarting the router
4) Factory resetting the phone
5) Flashing the same Lineage OS version from the SD card using TWRP.
6) Removing the battery for 1 minute and putting it back in and restarting the phone.
What happens normally?
I go into wifi settings by pressing and holding down on the wifi icon in the notification tray. When I get there, there is a blue moving bar near the top which makes it seem as if it is searching for a network. I still attempt to turn on the wifi using the switch to the top right. There's a message in the middle of the screen saying "Turning Wi-Fi on …" And then it searches and searches. Eventually the "on" and the wifi switch get greyed out and are unresponsive to any touch, but there is a moving blue bar just under it that makes it seem as if it is still searching, but it sees none. If I wait long enough and the phone screen times out and I turn it back on, in wifi settings, at the top it says "off" but the blue bar under it is still moving as if it is searching. If I press the switch, the same thing happens.
If I got into "Configure Wifi" the MAC address is set to 02:00:00:00:00:00 and the IP address is "Unavailable".
Doing all this gives me the impression that it is a hardware issue, not a software one.
But I'm wondering if there are any solutions that I haven't tried, or is there agreement that it is most likely a hardware issue.
My wife took it to a local market to see if they could fix it. The guy went to the TWRP app that was installed and claimed that somehow it had been used to delete the wifi software. It didn't seem right or likely. I don't think he knew what he was talking about.
Can anyone help at all please?
get a new phone lol serranoltexx is old
@amenyahu
Hello, If you have any FULL Backup include EFS, preload etc. Restore. If you don't have backup, you can try flash STOCK ROM using for ex. samfirm - https://forum.xda-developers.com/galaxy-tab-s/general/tool-samfirm-samsung-firmware-t2988647
Also you can use one of thread https://forums.oneplus.com/threads/...-02-00-00-00-00-00-after-3-5-5-update.480733/
Let me know if there is any progress.