Done that. Still no luck. Same error as below mentioned: LiveUpdate was unable to establish a connection to the LiveUpdate server. ....... In ISA Server's Properties, Outgoing Web Requests, Connections, I am asking 'Unauthenticated users for identification' and in PROXY LOGS my request is going as anonymous and sc-auth status as N. Could that be the problem? If it is, then how can I solve it? I want to keep the 'ask unauthenticated users....' option. Thanks. Sushil Bhalla