RealTek 8192se has been known to be a very flaky wireless controller, especially on Ubuntu. I’ve had trouble connecting to WPA/WPA2 networks ever since I installed Ubuntu 10.04 on my Lenovo Thinkpad Edge.
Two days ago, the wireless started being flaky no matter what kind of network it’s on. It seems a recent kernel update has broken the driver again.
The easiest way to fix this is:
1) Download the latest Linux driver from RealTek’s Website, use the one that fits your kernel.
Replace ‘/what/ever/directory/your/download/is’ with the path to your downloaded package.
3) Extract the driver package with:
cd /desired/directory; tar -xzvf /path/to/package
You can extract the driver package to any desired directory.
4) cd into the extracted directory. Then:
sudo su; make clean; make; make install;
5) Update your module database:
6) Use the newly installed driver:
7) Reboot and get wireless.
Still need to test on WPA/WPA2 networks.