Why do I regularily lose my wireless connection?
I use a wireless connection to access the Internet, and lately (since upgrading to ubuntu 9.10 karmic koala) it has started to be a pain in the ***. Every once in a while (loosing count at the end of the day) the connection will simply drop and the network manager no longer detects ANY nearby wireless network (usually, I detect something like 6 different networks). Actually, sometimes it will see the networks, but it will be impossible to reconnect anyhow. Rebooting the system solves the problem... Wired connection never fails. Even when my wireless connection fails, I can still get a working wired connection.