New
#11
In your case I can say for certain that your DIR-655 is not the cause of your networking problem. I'm using the exact same router with no problems what so ever.
I would have to place the blame on your network adaptor or drivers at this point simply because there are no other options. I can't seem to find any info on the Rosewill RNX-N2X wireless adapter, but the fact that Windows 7 can't even find the adaptor tells me that is the problem.
You can probably just purchase another Windows 7 approved network adaptor to fix your particular problem. I can just about guarantee that will fix it.