Software

My only recourse at this point is to restart the server. As soon as I can dismount the mailbox store successfully, I ran isinteg.exe and from time to time, discover folder errors which ISINTEG was able to fix. There were no ACLs error.

Any helpis appreciated. I've been battling this problem for a few weeks already and I've ran out of options (aside from constant server restart whenever this happens). Any suggestions? I can provide you with more info for diagnosis later.

Thanks in advance.

Server specs:
Dell Poweredge 4400, Intel XEON 1000 Mhz.
512 MB RAM,
RAID 5, Windows 2000 Server, Backoffice server 2000.
Around 30+ users.

Point value changed by question poster.

We had to use ESEUTlL, and run ISINTEG numerous times to get one Exchange database back to a consistent state. In the end we lost some Contacts for Outlook users, but that was all. "When situations like these develop, the first step is to shut down all Exchange services and restart the server." http://www.microsoft.com/exchange/techinfo/tips/DB_Corrupt.asp
Hope you find relief, I feel your pain!

This is an interesting problem, so I did a little search for a possible solution. I ran across an article titled, "Network Manager Challenge: solving Exchange's requesting data problem". Several solutions were offered.

One solution suggested, "...Log on locally to the computer. Add the computer to your Active Directory domain. Restart the computer. Log on to the computer locally, open the Outlook Client; you will notice that the email opens up much faster. Close Outlook. Remove the computer from the Active Directory domain. Restart."

But it seems the best solution stated the following:

"According to an obscure Knowledge Base article, with a TCP/IP-based wide area network, communication over some routes may fail if an intermediate network segment has a maximum packet size that is smaller than the maximum packet size of the communicating hosts - and if the router does not send an appropriate Internet Control Message Protocol (ICMP) response to this condition. Such a router is sometimes known as a "black hole" router. Basically, you have to go in and hack your registry (never for the faint of heart) and tweak the packet size. It's all described the article #Q314825. To read it, go to http://support.microsoft.com, select Knowledge Base, and enter the Q-number listed."

Read the whole article at:

http://www.outlookpower.com/issues/issue200210/challenge001.html

or

http://tinyurl.com/h01o

Ok, I will check the suggestion by Answer 1. About Answer 2, I've read the article, but the in the Network Manager Challenge's scenario, the client is at a remote location and passes through router to get to the Exchange server. We, on the other hand, have the Exchange server on the same network segment in our intranetl; there is no intermediate network segment. I will look at the other suggestions given by the article.

Will post updates soon. Thanks for the suggestions.

I remember such an Problem with Exchange and ScanMail. The Reason for this behavior wasn't the Exchange as more the antivurs Software on the Server. question: could it be that U are using Scanmail or anything like that ?

Regards

frobo

I get a similar error message on a WiFi connectged laptop. It randomly drops its link to the network and then shows the "Requesting data from Microsoft Exchange Server" message. Extropolating, I would suggest you either replace/check the server's NIC and also the Switch / Hub. You could be getting bad packets through the NIC or may have power/data issues with the LAN devices.