LoadBalancing in a HA Cluster

I got my rancher setup up and running at: rancher.mydomain.com. Then I installed the Wordpress Template from the catalog and wanted to point it at wp.mydomain.com - The L7 LB is running but when I try it in the browser I get default backend - 404

My dns for wp.mydomain.com points to the nginx loadbalancer I set up like shown in the installation guide.

If I am unsing the xip.io Adress everything works so I guess my configuration is wrong