Just tried it here and basically JoikuSpot isn't working at all.

I managed to connect to it once, most of the time I associate, but no IP address. When I did connect ping was in the 300-3000ms time

Not a kernel issue, but also noticed if you leave the status window open it takes a high % cpu - hence power drain. Fortunately this seems primarily a gui issue and if switched to background cpu returns to normal.

That was joikuspot