Unable to update license server

SUGGESTED

I am new to Sage.  We are trying to move Sage 100 Contractor to a new server.  We have Deauthorized the old license server.  When trying to update new license server, we continue to get error "Unable to update License information: failed to contact Sage."  We have internet access and I am told that port 48750 is open on the firewall.  Any help is greatly apprectiated.