This isn't meant as a thread ressurection, but I think my info should be here for those who are scratching their heads as I was.

Disclaimer; I work for an ISP that uses Zyxel routers, and those seem to work out fine, for the most part.

BUT.. I couldn't get at stable internet connection with my new N800, and went crazy trying to solve the problem.

I'd get choppy internet for 1-2 minutes, and then nothing, just timeouts.. Not actually a wifi disconnect, just no traffic.

I tried all types of security settings, wpa/wep/none, and fiddeling with any setting i could think of with the wifi, but nothing.

If i started a ping, from my NIT, it could run for hours on end, but any kind of web browing or program download/update would halt after a few seconds. MicroB might seem slow, but with the added constant timeouts I was ready to throw it out the window.

I also experienced random reboots, and eventually sent the NIT back for repairs. I recieved it back (the same one) now with the reboot problem solved. But the networking was still as bad as before.

The only stable connection I could get was with my cellphone over bluetooth.

I tried switching routers at work, but the problem continued. I tried upgrading to OS2008, but still nothing.

Eventually I found out that if wifi powersaving on the tablet is set to intermediate OR off the problem is gone. And I later found out other accesspoints worked fine, just NOT Zyxel routers. This setting needs to be set for every profile that uses the router, so it needs to be redone if you change SSID etc..

I hope to save someone else months of frustrations like i had, when the problem wasn't reproducable at Nokia's repair shop

The router in question was Zyxel prestige P2602R D1A (and I tried various router firmwares, and multible routers) and Zyxel P660HW (again with various firmwares and routers)