Ah, now there's a sight.

Have you upgraded to the latest firmware? The reason I ask is because I used to have problems like this ALL the time. When I upgraded to Diablo, I rarely run into issues like these now.

The other issue could simply be the router. My Linksys router was wacky until I upgraded the firmware --- my laptops had no issue, but was SUPER slow for my n800 --- I had to disable power-saving for it to work properly. Prior to that, I had a Belkin router which did not play well with Linux --- also super slow, but there was no firmware upgrade. Thus, that's why I have the Linksys.