Are you running any dynamic routing protocols on the 3060? In particular are you using OSPF or RIP Reverse Route Injection (RRI) between the 3060 and routers behind it?
Are you using the 3060 to act as a DHCP server?
How many SEP modules do you have installed? If more than one, does the 3060 allow all clients to use any sep card, or are you manually trying to load-balance among the different clients (some groups use card1, some use card2, etc.)?