This problem happens only on oe client. It started on august and it is still here. I tried asking on this forum time ago, but no answer solved the problem. Cleint was running windows server 2008, now i have updated to last sep version and then to win2008 r2 but still no luck - it still doesn't get updates. Cient can communicate with the server, cause it has just updated the policy, but can't get virus definitions. All other clients can get virus definitions. This clinet has IP 192.168.2.2, all other clients has IP 192.168.1.x, server has IPS 192.168.1.1, 192.168.1.1,192.168.0.2.