I need some help with this one.

I have userman on 5.1 w/hotspot and auth.net working. It took some javascript and cookies to get everything the way I want it, and there are some unrelated issues, but that's OK.

The big problem I'm having is the return url. I simply want to redirect user to the hotspot login page after auth.net payment. I have tried every url I can think of, but nothing takes me there, correctly.

Can anyone shed light on this?

I have tried https://<my hotspot's domain>/hotspot ../login ../ ../login.html each time I get a 501.
If I then refresh, I get a 404.

(Of course, I can simply make the return url http://www.google.com and I get the hotspot, but that is not an ideal solution as I will post separately.)