Avaya AP-6 - Manual (Page 257)

RADIUS
Avaya Wireless AP-4/5/6 User’s Guide 4-159
11. Enter the maximum number of times an authentication request
may be retransmitted in the Maximum Retransmissions field.
Range is 0-4; default is 3.
12. If you are configuring a back-up server, repeat Steps 6 through 11
for the back-up server.
13. Click OK to save your changes.
14. Reboot the AP for these changes to take effect.