I have 3 locations that are each a separate sub net. All are the same domain, and each have a DC on site. The DC's replicate dns and AD stuff fine. The 2 remote locations are connected back to the main location via their own 3gb fiber connection. For the internal connection between locations we are using cisco 3750 running advanced ip services. We are using static routing and eigrp to handle routing between sites. The domain controllers are all running 2k8r2 and are patched to latest patches from MS. I can ping via ip/hostname to all clients and can \\ to any of them just not see anything out of the subnet in network browser. I have also turned on the computer browser service and set to auto start on the servers.
Main location: PDC and a backup DC. Running WINS on main and DNS on both 10.1.x.x
Location 1: DC with DNS 10.2.x.x
Location 2: DS with DNS 10.4.x.x
on our 3750's all are running the same version of IOS and feature set. I have setup ip forward protocol udp for ports 137,138,139.
I am at a loss of what to do next. The mystical Google machine has not been able to answer this and my brain is now mush.