Can anyone help me with my queryy?
I attempted to reproduce this error using the same WMS server and was successfully able to load that map in both Desktop and on my local Tableau Server.
Are you able to log into the machine running Tableau Server and see if that address can be reached from a browser window? I will likely just be some XML data but that would show it was successfully able to communicate with the server. If it fails, then I suspect there are proxy or firewall settings are preventing the Tableau Server from reaching this address.
Thanks and hope this helps!
Your company proxy could be blocking it.
Find out what is and is not allowed from your network team.