This worked before, but stopped working very recently. W7 computers do not log into the wireless production network with Radius authentication (guestnetwork etc works).
W10 computers work fine.
Aruba gives a lot of errors (RADIUS authentication issues) and Radius server gives (IAS_AUTH_FAILURE).
As it looks like only w7 -computers are suddenly affected, this leans me to thinking a certificate has come to end of life but do you gurus have any idea where to check or what certificate it could be?