Give "https:///tmsagent/tmsportal/#settings" a shot. I had pretty good luck with that. So for example:https://10.10.10.10/tmsagent/tmsportal/#settingsor, assuming the DNS name of the server is "tmsservername".https://tmsservername/tmsagent/tmsportal/...
Ever figure it out? I have no idea. I'm sure it needs to point to the tms, but the exact url i'm really confused with. Adding to what you said, the admin, install and user guides all just seem to skip what you would want to reference.