Radius Reauth

How often does the AP check for Reauth of connected CPE’s i don’t see anywhere where this can be changed or set, if i disconnect a customer or change their speed in radius when will the AP take not and disconnect/change the connected user?

When using RADIUS, the reauth is every hour (3600 seconds). If the MIR profile for a subscriber is changed on the RADIUS server, you will have to disconnect the subscriber (through Monitor->Wireless page on the AP) so that the subscriber can perform a fresh Network Entry and take the new changes.