Looks like setting a fixed rate on the _router_ fixes the problem for me. While it is set to 'auto' the connection speed drops to 1mb/s after some time but since I set it to 36M fixed on my dlink router the speed remains fast. Setting fixed rate with iwconfig didn't work. Looks like a rate control algorithm problem in the driver, but who knows.
p.s. i got dell latitude d830 with intel 3945, ubuntu 10.04 with backports enabled
Looks like setting a fixed rate on the _router_ fixes the problem for me. While it is set to 'auto' the connection speed drops to 1mb/s after some time but since I set it to 36M fixed on my dlink router the speed remains fast. Setting fixed rate with iwconfig didn't work. Looks like a rate control algorithm problem in the driver, but who knows.
p.s. i got dell latitude d830 with intel 3945, ubuntu 10.04 with backports enabled