my laptop on knoppix on wifi was fine up till this morning, but then it lost connection, and I couldn't see my wireless router listed.

I checked on my phone and it is there.

I clicked around on the taskbar and saw an option to disable/enable it, I thought that might help, though now it doesn't list any at all and I can't see what I clicked there.

I have clicked "enable networking", but it's not showing any wireless networks.