This is the second time this has happened with a cm 6.1 rc, first it was rc0 and now it's rc3. I've been running rc3 since it came out with slayhers 1.6 1ghz lv kernel, and everything was fine. Then today, the wifi just stops connecting, and now it doesn't actually see any wifi network in range, but it still just sits on connecting, and never does anything. Both times this has happened at work, where I bounce between two wifi networks in the building, so I'm assuming it has something to do with changing between two networks. So far the only way to fix it is to wipe data and completely reinstall the rom.