Hi I added a Win 2008 R2 Foundation server to our existing domain. Planning to use it as the DC. After a while, the users start getting error messages "Disk or Network Error" and some problems with Outlook. I shut down the Foundation server and all returns to normal. Anybody has this issue? Help and advice much appreciated. Many thanks in advance Richard i started it up again today but there were no issues...

Hi, To determine and verified what actually happen you can try executing the below commands. 1) chkdsk = To verified if hard disk is having problems. 2) netstat -s -r -5 check if there is any packet missing or unreachable. 3) pathping from client machine to exchange server. 4) ping -t at gateway to determine NIC card is ok.. no packet drops or intermittent connectivity. 5) start run > eventvwr > systems > try to locate perf or disk error. :) Usually such error when it prompted. It is likely to be a network issue. Hope it helps :) Good Day :) Guowen Su | CCNA, CCIP, MCP, MCSA, MCSE, MCTS, MCITP, CEH | http://www.microsoft.com/en/sg/default.aspx Our Goal? VERY SATISFIED Customers. If you're not...let's talk!!

Thanks for taking to help should i chkdsk or the rest on the server? 2 client machines has the error message. Richard

Hi Richard, Thanks for posting here. Could you please discuss these error messages "Disk or Network Error" in detail ? error ID or description form even log is preferred. Meanwhile, what about the network settings (IP address segment , default gateway, DNS server…etc.) you set for client computers ? have you modified any these setting since join this Windows server 2008 R2 foundation host into domain and prompt it as a domain controller of exist active directory system? Thanks. Tiger Li Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.