Clients can no longer authenticate to our secure SSID. We use 802.1x and Aruba is integrated with our NAC (vendor is Bradford Networks). No changes have been made to our systems. Some clients get a certificate error "The certificate you are viewing does not match the name of the site you are trying to view", but this is unusual; most do not.
Looking at clients in the SSH terminal we see "rad-reject" and "server rejected" , at the end of many lines.