AP not sending realm to radius server properly?

I put a realm in my AP to do mac address authentication for my cpes. I have it working, but not quite correctly as it doesn’t pass the realm to my radius server, it gets passed as:

14988-Dummy-Atrribute-71 = “@realm.net

I put in the @ sign for testing. Nothing shows up in my log as a realm, so it just uses my default one. I would rather it worked.

Also, the AP will then try to authenticate every 35 seconds or so for a radio that isn’t authorized, can this be changed?

Tom