Up until a few hours ago I was able to ssh to my pix firewall and login with my tacacs account. It mysteriously stopped working. My account isn't locked and I can ssh to the standby ip address (the failover pix) and log in via tacacs (proves routing, ACLs and TACACS works). Any ideas why this happened and what I can do to fix it? I've compared both configs (from primary and failover firewalls) and they are exactly the same.
I have this problem too.