For a long time, we been running ACS 3.0 on a W2K server using SP3 without any problem. Over the weekend, we upgraded to SP4 and some MS patches and ACS are starting to have problem. If a routers or switches has TACACS enabled, there are times that it doesn't accept the username and password. But after I restarted the ACS services, I can log-on to the routers or switches without any problem. Has anyone experience this kind of problem?
