Hotspot Radius authentication stopped rc7

Has any one faced the same issue??
just about 30 mins ago all 3 of my sites running ROS v6rc7 stopped
they ware just unable to authenticate with radius so i have to revert back to v5.24

according to the debug packets the router was getting access-accept but was not adding the user to hotspot>>active list

same issue started in rc 5.24
admin please respond to Ticket#2013033166000128