Server 2003 wireless issue

I recently installed Windows Server 2003. My ethernet connection works fine, but my wireless gives me a limited or no connectivity error. I can send packets out, but I cannot receive them. I checked the status of the connection and it always says 0 packets received. I've disabled windows firewall and checked all the policies on the system and I can't find the issue. I've done all the security updates as well. I read that SP1 automatically disables incoming connections, but that it can be resolved through disabling the firewall (which I already did). Any idea where to start with this issue?