I don't think it is only router related? I never noticed this problem (or it wasn't severe enough) prior to my purchase of N800. With 770 I *think* I had some mysterious WiFi disconnects or network slowdowns before, but it never got as bad as with the N800. Now it is very consistent that *any* WiFi connection seem to suffer if Bluetooth is turned on. It is just more sensitive with higher channels like 11. However, my desktop or laptop do not seem to be disturbed about the BT at all. (I have external BT dongle on my desktop and I use BT mouse with my laptop when working without docking station.) Based on my knowledge (which may be wrong...) the N800 as well as 770 use the same antenna for both BT and WiFi. Therefore the "interference" signal for each other will be significantly stronger than if the antennas were separate.