Not quite sure if this is the right spot for this I have a SBS Server running that once every 1 to 3 weeks drops the conections with the clients In order to fix this I have to restart the IIS services with iisreset and restart the exchange information store On the server there are a lot of Active sync errors till I do the above Any ideas what could cause this? or a way to fix it more permantly?

Any events in the application or system logs preceding this? What service pack is your Exchange Server at?Tim Harrington - Catapult Systems - http://HowDoUC.blogspot.com

I am running Exchange 2003 SP2 on Server 2003, it is the SBS package Nothing seems to be in the logs preceding the problem, there are Active Sync errors after the problem occurs, event id's 3007 and 3014 I have looked those up and tried what is mentioned in some of them, but it doesnt match what is happening with my server The problem seems to happening on weekends mostly, but I dont have anything running on weekends that doesnt runn every other day

Just wondering if anyone has any ideas? or suggestions? This is becoming a more urgent issue and my client is wanting to know what we can do to fix it permanently The temporary fix I mentioned above only does it for so long then it happens again

Are all clients disconnected or, since it usually happens at the weekend, is it only one person that gets disconnected, notices and then calls you? When the disconnect happens can you login to your mailbox via Outlook or OWA? Can you turn up Exchange diagnostic logging: http://support.microsoft.com/kb/821912. And take a look at Exchange "best practice analyser" and "troubleshooting assistant". Both dump out a fair bit of useful information and gathering as much of that as you can would help so you're not shooting in the dark. I've found a lot of strange issues that were caused network card duplex misconfiguration or resolved by installing the latest network drivers. Also maybe worth looking at Windows 2003 Scalable Networking pack issues: http://msexchangeteam.com/archive/2007/07/18/446400.aspx. Hope this helps, Mark.

Sorry for the delay in reply, busy day They usally notice first thing monday morning, but I can see the active synv logs start earlier then that, commonly on Sunday I know that the outlook clients stop working altogether for everyone, Outlook just stops at waiting to update folders and doesnt go anywhere till i do the above metnion temporary fix I havent thought to try OWA yet, next time it happens I will try and log into it I have run the best practices Analyser and there wasnt much it picked up 1 or 2 things, which i fixed anyway, didnt seem like that would cause this but you never know I have already check all the networking config and put the latest drivers on there aswell As for the increasing the logging level I will give that a go and see what comes up

I had the similar issue, If you are getting your sessions reaching the limit of 32 then they may get disconnected. please do the following to watch it. from ESM .. Mailbox db \Logons and click view on right side of esm, add columns set the required fields like total ops etc and monitor .. this should help

In my case was a network issue and dismounting and mounting the store used to solve the issue for a while.

Just an update and its seems it has moved to a weekly problem Nothing appeared in the logs this time, expect that the public information store is reaching its max size limit, which at this point is 18gb Going to try and up this to a higher limit and see if it affects the issue