#14 opc returns unspecified error

[AHeidrich]

Problems using opc CLI tool and/or gateway.

Server: W2008r2, Matrikon test server, No firewall
Gateway#1: W2008r2, Python 2.7.13, No firewall
Gateway#2: Win7, Python 2.7.13, Firewall permits OPCGateway
Client: Linux/Python2, No fw

gw#1: CLI (opc) works, I can get any data from the server (using environment, or command line options, using ip address, or server dns name). I can create open_client from Linux, but client.connect("server-name", "server-ip") returns "access denied"

gw#2: server is accessible (ping), but no data is returned, not even server list - only "Unspecified error". No firewall on server.