problem: it does not connect to any wifi network you can see the time out on dmesg


Bus 002 Device 007: ID 0bda:817f Realtek Semiconductor Corp. RTL8188RU 802.11n WLAN Adapter


wlp0s20u1 IEEE 802.11bgn ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=20 dBm
Retry short limit:7 RTS thr=2347 B Fragment thr:off Power Management:off

dmesg http://pastebin.com/VJEWc2tQ

  • The driver in question is actually rtl8192cu and I have edited the title of your question to so reflect. – chili555 Jan 29 '16 at 15:43
  • Actually the module is called rtl8xxxu and i think it is a rewritten driver for the new kernel 4.4.x that I am using. It is actualy very newand stable for only few devices. permalink.gmane.org/gmane.linux.kernel.wireless.general/143417 I am using this one beacuse the old one dropped connection after 10-15 mins – Drunk Cat Jan 30 '16 at 18:07

The kernel driver for this adapter is quite unstable. I suggest that you install a better driver from source.

The newer driver has been packaged to DKMS format and added it to ppa. If you install it from there, you will not need to re-install it after kernel upgrades. It can be installed by

sudo add-apt-repository ppa:hanipouspilot/rtlwifi
sudo apt-get update
sudo apt-get install rtl8192cu-dkms

Reboot and your wireless should be working.

  • installed it and tried it without success – Drunk Cat Jan 30 '16 at 20:05

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