Router: d-link wbr-2310 rangebooster
wifi adapter: belkin fsd7000 pci card.
mobo: asus m2n68
cpu: amd athlon x2
os: XP Sp3
About a week ago, my old motherboard/cpu failed (pentium both), and I installed the wifi adapter into this board. Previously my connection was a stable (very good/excellent) 54mb connection. Ever since this change my connection has settled around 11mbps (wireless b speeds) even though I have both the router and the card set to wireless-g only. Sometimes it goes as low as 1-2 mbps, and connectivity drops.
I have tried various channels (using inSSIDer to find clear ranges), tried 4 different drivers for the card, several firmware versions for the router, and uninstallation/reinstallation of both. I've configured both devices in a multitude of ways hoping to solve the problem: all to no avail.
Any advice or things to try would be appreciated. Thanks.