You'll need to troubleshoot the trusted ticket issue by looking in the Tableau Server logs, as a "-1" return value means that it received the request, but denied access. Typically this is because the IP address of your host is not actually trusted. It's likely that it's seeing the IP being that of your load balancer, not the host making the request. If you own the load balancer, and can ensure all traffic coming to it will hit Tableau Server, you can add it's own IP to the list, and then institute a rule of some kind that verifies the source IP on the LB itself.

Hi Shafi. Did you get it working? If this answered your question, would you mark my answer as correct, please?

thanks!

Matt