Playing XviD over wireless

[beatle]

I'm not sure what's the problem here. I have a Linksys WRT54GS + WMP54GS PCI NIC and I'm not able to stream a 1.2Mbps stream over my connect. My signal is low, but I'm able to transfer at over 8Mbps. I tried increasing the buffering to 10 seconds in Windows Media Player, but that doesn't seem to help. Is there anything else I should do to my network config (QoS is currently off on the adapter) or is there another setting I should fiddle with in WMP? If WMP can't get the job done, is there a player that can?