Exchange server keeps going off.

hi Experts

I have sbs2000 server, which runs exchange. But ever so offern the serives to the exchange shut off. Not sure what this is to do with, would it have something to do with ISA? I mean i get an error in event log saying about web proxy error. and saying about packet filter error. Would that be why its intermitant? Thank you Guys.
dcleaverAsked:
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GranModCommented:
PAQed with points refunded (120)

GranMod
Community Support Moderator
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dcleaverAuthor Commented:
mroe information, just discovered, the information store service stops, thats the service. Which means no-one can open outlook.
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MikeeMiracleCommented:
Do you get anything in the event viewer? That's the best place to start.

Also your unlikely to get many people willing to help you with an exchange problem when you only offer 50 points.
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dcleaverAuthor Commented:
Source: MSexchangeSA
ID: 1005


Unexpected error <<0xc1050000 - Network problems are preventing connection to the Microsoft Exchange Server computer. An unexpected, unknown error has occurred. Microsoft Exchange Server Information Store ID no: 80040115-0514-000006ba>> occurred.

For more information, click http://www.microsoft.com/contentredirect.asp.
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dcleaverAuthor Commented:
the information store, just stops and i have to manually restart it.
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dcleaverAuthor Commented:
Source: MSexchangeSA

Id: 9175

The MAPI call 'OpenMsgStore' failed with the following error:
The Microsoft Exchange Server computer is not available.  Either there are network problems or the Microsoft Exchange Server computer is down for maintenance.
The MAPI provider failed.
Microsoft Exchange Server Information Store
ID no: 8004011d-0526-00000000

For more information, click http://www.microsoft.com/contentredirect.asp.

This occurs more offern
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MikeeMiracleCommented:
hmmm.....is there anythign else in the event viewer just before the IS stops each time?  The errors you have shown are errors to say that the System Atendant cannot communicate with the information store, which we already know as it has stopped.

I have a similar issue happening to one of our servers here which I have not yet been able to solve.
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aa230002Commented:
Please check the System logs also at the same time, when Information Store service crashes. Still, if you dont find anything, I would suggest you to collect the adplus dump on store.exe in the crash mode.
This dump will help you identify whats going on and why Information store service is crashing. You will have to contact MS support to read these dumps.
Here is the link to collect adplus dump ->
http://support.microsoft.com/kb/286350/en-us

Thanks,
Amit Aggarwal.
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SembeeCommented:
How big is your information store? You need to look at the size of the databases and see how big the priv files are combined.

Simon.
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dcleaverAuthor Commented:
i have sorted this issue. i updated the exchange to lastest service pack. which is service pack 3 roll up
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