If AssetWise and WSG are installed on separate servers, then you must open ports to enable both servers to communicate with each other. The full detailed document can be found at: http://eb.bentley.com/eBProd/Framework/Endpoint/DownloadFile.ashx?fileID=65050.

You must create a new Windows Firewall inbound rule on the server to which AssetWise Information Integrity Server is installed, to open up the following ports for connection: 18380, 18382, 18393, 18387.