It says:
Unable to connect to host
LU1813: LiveUpdate could not connect to the update server because you provided incorrect authorization information for either your proxy server or the update server. If you connect through a proxy, verify that the proxy information entered through the LiveUpdate Control Panel is correct. For assistance please contact your System Administrator.
I will check it - just strange that it has changed (we don't use any proxy server) and nothing on the network has changed at all.
Thanks Rafeeq