what could be causing repeated internet connection dropping on a wireless network (the wireless does not disconnect), which can be momentarily fixed by disconnecting and reconnecting in 14.04? Here is the wireless info list http://pastebin.com/ZgGxQ9qE

I am using a USB TP-Link TL-WN821N wireless adapter (Realtek rtl8192cu).

  • Please edit your question and add output of lspci -knn | grep Net -A2 terminal command.
    – Pilot6
    Aug 19, 2015 at 16:14
  • Have a look here too...
    – Fabby
    Aug 19, 2015 at 16:23
  • @Pilot6 - hi, I tried that command but it prints nothing on the terminal, if I type just lspci -knn there is a long list.
    – abzullah
    Aug 19, 2015 at 16:24
  • Are you using a USB wireless adapter?
    – Pilot6
    Aug 19, 2015 at 16:27
  • @Pilot6 - yes, it is a TP-Link TL-WN821N. But the wireless connection does not disconnect, I can ping the router at its ip address.
    – abzullah
    Aug 19, 2015 at 16:30

1 Answer 1


Install the driver by running in terminal:

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

Then reboot.


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