Hi Guys, We have frequently encountered Outlook clients been disconnected from the Exchange server and it re-establishes the connection after like 5 - 10 seconds. We have clients connecting to the server on both MAPI and RPC over HTTP. We found a lot of similar reports on the net and tried some of the solutions suggested. We have tried updating the NIC drivers on the servers and also disabling TCP Chimney but it didn't helped. Has anyone out there also encountered such a behaviour on the exchange server? We are running MS Exchange 2007: 2 Hub Transport/CAS on NLB 2 MB Servers (Clustered) Thank you in advance. ecgoh

If you are happy with network/exchange actual performance and if you just want your users to stop complaining, you could use the office ADM files to set a GPO to supress that balloon.

What is the path to supress that ballon?