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I am running a relatively fresh installation of Kubuntu 14.04 on my HP Inspiron laptop (I installed it about a month ago). It was working perfectly fine (except a couple of hiccups) for all this time, until last couple of days.

Now, some time after booting (say, 20 - 30 mins), the WiFi stops working -- sometimes it disconnects from the WiFi network, and goes into infinite loop of trying and failing to connect; or sometimes it shows that it's connected to the network although nothing works. If I try to manually reconnect to the network, it seldom works. If I disable and enable WiFi (from Kubuntu's network manager), it instantly connects to the network, but again, nothing works. The only solution is to reboot the computer, and it works just fine -- until 20-30 mins.

It's not a network problem, because WiFi works just fine on my Mobile. It's not even a hardware issue because WiFi works flawlessly on same laptop in Windows.

How do I fix this annoying WiFi issue? If you want me to run any commands, I can show the output.

Note: I don't think I installed anything new / changed anything in the configuration that might have destabilized WiFi.

Edit:

tan@tan-laptop:~$ lspci -knn | grep Net -A2
08:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8188EE Wireless Network Adapter [10ec:8179] (rev 01)
Subsystem: Hewlett-Packard Company Device [103c:804b]
Kernel driver in use: rtl8188ee
tan@tan-laptop:~$ uname -r
3.19.0-30-generic
tan@tan-laptop:~$ dkms status
bbswitch, 0.7, 3.19.0-28-generic, x86_64: installed
bbswitch, 0.7, 3.19.0-30-generic, x86_64: installed
nvidia-346, 346.96, 3.19.0-28-generic, x86_64: installed
nvidia-346, 346.96, 3.19.0-30-generic, x86_64: installed
rtlwifi-new, 0.5~trusty, 3.19.0-30-generic, x86_64: installed
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  • Please edit your question and add output of lspci -knn | grep Net -A2 terminal command.
    – Pilot6
    Oct 15, 2015 at 15:11
  • @Pilot6 Check now.
    – taninamdar
    Oct 15, 2015 at 15:12
  • Try the suggestions here
    – user323419
    Oct 15, 2015 at 15:15
  • What is the kernel version uname -r?
    – Pilot6
    Oct 15, 2015 at 15:15
  • @HeatherBrown It is a very old thread.
    – Pilot6
    Oct 15, 2015 at 15:16

1 Answer 1

Reset to default
1

You can try another driver for this adapter. Run in terminal

sudo add-apt-repository ppa:hanipouspilot/rtlwifi
sudo apt-get update
sudo apt-get install rtlwifi-new-dkms
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10
  • Do I need to reboot afterwards?
    – taninamdar
    Oct 15, 2015 at 15:18
  • didn't seem to work. I installed and rebooted. Worked for some time, now same.
    – taninamdar
    Oct 15, 2015 at 15:36
  • Well. There is no better driver so far. It may be a hardware issue, like antenna bad contact, etc.
    – Pilot6
    Oct 15, 2015 at 15:46
  • But it works fine in Windows, so shouldn't be a hardware issue, right? Do you need to know output of any more commands? :\
    – taninamdar
    Oct 15, 2015 at 15:47
  • I do not have any other solution. Maybe it is some kernel bug too. Try too boot with one of the previous kernels using grub.
    – Pilot6
    Oct 15, 2015 at 15:49

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