Win 7 Can't Access Shared Folders

Hey guys. I'm running Win 7 Ultimate x64 here on my computer, and I'm having trouble connecting to shared folders on my LAN. I can ping the computers, my Windows Home Server's console and Remote Desktop work fine, and I can see some of the computers listed under Network Places. The server shows up as "Other Device" (but not as a computer). The problem is I can't access the shared printer on the server or the shared folders on any computer. All of other computers can connect to each other(Snow Leopard, XP, Vista), and to my computer, but my computer can't see everyone else's shared folders.

I think it started when my ethernet was acting funny and reporting there was no cable when there it was plugged in. I got new drivers from the manufacturer, and ethernet works fine, but I can't access my computers' shared folders. Internet and ping still work fine. I can't access the shared folder using just my wireless either.

I'm using my router, RVS4000, as my DHCP server and it assigns static IPs to all the computers that connect via DHCP.

My WHS is functioning as my primary DNS server, pointed to by the router. OpenDNS servers are the alternates in the router, and the WHS DNS server goes to OpenDNS for anything it doesn't know what to do with (basically everything). My local dns server just gives domain names to all my local computers, and seems to work.

I've tried absolutely everything I can think of, and I'm still at a loss.