I have a Dell with the Intel Centrino Wireless-N 1030 capable of 150Mbps trx and 300Mbps rec. I'm only getting 150Mbps Rec 65Mbps Trx connected to a Buffalo 300N router. Windows 7. Any pointers.
Router set to N 2,4 Ghz Ch width 40Mhz.
Some update. I noticed that on reset of the router or simply by making a small config change and applying or save, the link speed jumps back to 300mb (Task Manager). At exactly 5 mins later it drops to 130mbps. I've defaulted the router setting. I'm running DD-WRT v24-sp2 (08/07/10) std - build 14896 firmware on the router.
OK, just because you see a link speed of 300 Mbps does not mean you have a solid connection. Every so often the router and PC will renegotiate the connection speed, and if the connection has required a lot of retransmissions the speed will drop. Also, if the router has been hearing a lot of interference from another router on the same channel it will reduce the transmitter signal strength, and that will reduce the speed also.