I have a n800 since maybe 2 months.
I am on channel 1, using WEP, Ad-Hoc to a debian system.

The Wireless has worked very well until maybe 1 week. The only thing I changed is adding some profiles and removing others.
When I go in the statusbar and click my network it displays an error.
Going into cli and issuing
iwconfig wlan0 essid link
says wlan0: device not found
ifconfig -a does report wlan0 as "NOT READY"
There is no network around me so it's not "blinded" by anything.

After several tries of ifconfig wlan0 up and then down I finally get back my wireless:


I'm just very surprised it worked maybe 200 times for the last months and now it works only half of the time.
Yesterday I upgraded from firmware 28 to 34 (I know it only corrects the card problem). Before or after, same problem.
I was at home and there are a lot of other wireless networks. When going in the network status icon, it could only see my static profiles.
Hope I'm not doing anything wrong.. Looking at bugs.maemo.org I didn't find anything related (wlan0: No such device)
Next time I'll try to reload the kernel module. Which one is it?

Otherwise, still very happy with the n800. Actually it's my only problem (which has a workaround) .. until now