WiFi disconecting

**Mel_Blakey** · August 13th, 2017

Lenovo-ideapad-100-15IBY
RTL8188EE Wireless Network Adapter

Hello
I installed 16.04 on to this new laptop after wiping Win10 last year.

It has run perfectly for 11 months..... like a dream. Then, 1 month ago I noticed that it was taking quite a long time to shut down, so I searched around and came across this thread https://ubuntuforums.org/showthread.php?t=2322159 and applied

Code:

sudo systemctl disable cups-browsed

All was back to normal and my machine was shutting down quickly.
(I am telling this as background info)
-------------------------------------------------------------------------------------------------

The WiFi worked flawlessly up until about 5 days ago when it started dropping out at 5-15 minute intervals.

I know that there are already posts about this problem. But, they are regarding new installs.
My problem has only just started after 12 months.

I have tried an earlier kernel via the start-up menu and that has not made any difference.

Does anyone have a fix? I've attached wireless info

wireless-info.tar.gz

**johndough2** · August 13th, 2017

Hi

Not really helpful I'm sure, but I don't understand

nameserver 127.0.1.1
searchwww huaweimobilewifi com
IP4.DOMAIN[1]: www huaweimobilewifi com
IP4.ROUTE[1]: dst = 169.254.0.0/16, nh = 0.0.0.0, mt = 1000

Are you using a mobile phone for anything? Are you creating a hotspot?

Also channel 2 is possibly being flooded, perhaps switch to 6 or 11. My screenshot to show that channels are incline to bleed over. So the 9 AP's on channel 1 could be a problem.
ChannelClogging.png

**Mel_Blakey** · August 13th, 2017

Are you using a mobile phone for anything? Are you creating a hotspot?

No, it's a Huawei mobile Wifi. http://www.expertreviews.co.uk/networks/wireless-routers/1401870/huawei-e5372-review Been using that since last Nov. Again, without issue.

I've changed it to channel 6 and whilst I was in there I noticed that the country setting was wrong. So, I've corrected that aswell.

Thanks for your help!

**jeremy31** · August 13th, 2017

Can you change the settings on the mobile wifi to disable TKIP encryption and see if there are any WMM/QOS settings. It might be worth checking to see if there is updated software for the device as there were some errors like

Code:

AP has invalid WMM params (AIFSN=1 for ACI 0), will use 2

That make me think it could be an issue with the device

**Mel_Blakey** · August 13th, 2017

Originally Posted by jeremy31

Can you change the settings on the mobile wifi to disable TKIP encryption and see if there are any WMM/QOS settings. It might be worth checking to see if there is updated software for the device as there were some errors like

Code:

AP has invalid WMM params (AIFSN=1 for ACI 0), will use 2

That make me think it could be an issue with the device

I have set it to AES only. I don't see any reference to WMM/QOS
The software is up to date.

Before I changed the settings I did a Factory Reset. Now there is only 4 instances of the word invalid in the wireless-info.txt

Code:

thr:off
          Power Management:off
          Link Quality=70/70  Signal level=-34 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0

As opposed to 19 before.

The device has stayed connected connected for 1hr 20 min now and that's good enough for me. I'll give it another reboot or 2 and hopefully be marking this thread solved

Thanks both of you for your help!