I'm having issues with Plesk 11 and WPB loading. I guess I could say that I've always had issues with it, however previously (Plesk 10) I was able to create a custom button with the correct URL ending in /Start. This doesn't appear to work anymore because there's no token passed to WPB and therefore refuses to load. WPB appears to use https and 8443 without issue as the link located in the home tab is correct and the choice menu for the domain is correct as well. Once you pick the domain the WPB fails to load. This is because it's making an http request on 8880. A work around is to replace http with https and 8880 with 8443. WPB works as intended after manually changing the URL. In our case 8880 is blocked at the firewall in order to comply with PCI compliance standards. Is there anything that can be edited to change the behavior of the WPB or is this just a bug?