Hi Edrick,

Without the log files to run down that error message, this will only be a guess, but could get you started on the right track.

If I were you I'd doublecheck that I had followed the following two links carefully, as the errors seems to point to a proxy configuration issue specific to a WMS server.

Deploying a WMS for Integration with Tableau | Tableau Software

http://onlinehelp.tableau.com/current/server/en-us/help.htm#proxy_config.htm

If, after checking those two things and confirming, I would recommend filing a support case at support@tableau.com so that the logs can be investigated a bit more closely.

Thanks!