I have an ACS 4.0 server that i use to authenticate the routers and switches on the network. Its been working fine for 4 years but over last two days i can only login to devices via the local password. Routing between the server and the devices on the network seem fine and i can ping everything. I have restarted the services on the ACS server and even rebooted the server but still no luck.
Nothing has changed on the routers & switches ie aaa new model etc is all still in place.
Anyone seen this issue before?