change primary symantec server name ...

i have a primary symantec anrivirus server and some clients on differenet LANs that recieve their virus definitions from this primary server,i want to change the name of this server from " Little " to " Big" . but i worry about clients that couldn't recieve updates after this change. i examined this issue on 3 computers on a lab and the cilent update its server named and recieve updates but secondary server not .
have you done any thing similar what i want to do ? was the result ok ?

hello....
no idea???

Wouldn't you have to make a new rule? See this - http://www.isaserver.org/tutorials/Allow...ISA_Server.html