Beginning around 9pm we received reports of wireless access being down. After investigation, it was determined this was not a wireless outage but a radius/authentication outage. All three radius servers tasked with processing authentications for wireless, VPN (Anyconnect), and device management were not responding to requests. Globaprotect VPN access was no impacted since it uses a different authentication source. A rolling restart of the three servers was able to bring one up and authentications began to process again. All three servers are now functional after all being reloaded and the root cause is under investigation.
Impact: Radius authentications failing.
Affected Applications: Wireless access, VPN(Anyconnect), and device management.