From: Rob on
I am running Exchange 2003 on Windows 2003.

Twice over the last 2 days, the server has basically refused connections.
Users cannot connect using Outlook, OWA or Activesync.

When I try to log on using a domain account, the logon screen basically
freezes after I enter the credentials. When I log on with a local
administrative account (not a domain account) I am able to log on to the
server.

There are several errors in the event viewer. In the system log, there is
1012 from W3SVC that says:
A process serving application pool 'ExchangeApplicationPool' exceeded time
limits during start up. The process id was '9184'.

In the application log, there are 3 errors that look troubling:
1031 from MSExchangeSA
One of the System Attendant's task is blocked.
Function: CMonitoringTask::Work

One of the System Attendant's task is blocked.
Function: COffLineABScanTask::Work

One of the System Attendant's task is blocked.
Function: CPollDomainExchangeServersGroup::Work

It seems that the server hangs after the appearance of these errors.

This server was never a Windows 2000 server, nor is it a part of a cluster.
It's not a DC.

Thanks.

From: james chong on
See if this helps.


The Microsoft Exchange System Attendant service may not come online if
the RootVer registry value is invalid on a server that is running
Exchange Server 2003
http://support.microsoft.com/kb/906154

James Chong

Rob wrote:
> I am running Exchange 2003 on Windows 2003.
>
> Twice over the last 2 days, the server has basically refused connections.
> Users cannot connect using Outlook, OWA or Activesync.
>
> When I try to log on using a domain account, the logon screen basically
> freezes after I enter the credentials. When I log on with a local
> administrative account (not a domain account) I am able to log on to the
> server.
>
> There are several errors in the event viewer. In the system log, there is
> 1012 from W3SVC that says:
> A process serving application pool 'ExchangeApplicationPool' exceeded time
> limits during start up. The process id was '9184'.
>
> In the application log, there are 3 errors that look troubling:
> 1031 from MSExchangeSA
> One of the System Attendant's task is blocked.
> Function: CMonitoringTask::Work
>
> One of the System Attendant's task is blocked.
> Function: COffLineABScanTask::Work
>
> One of the System Attendant's task is blocked.
> Function: CPollDomainExchangeServersGroup::Work
>
> It seems that the server hangs after the appearance of these errors.
>
> This server was never a Windows 2000 server, nor is it a part of a cluster.
> It's not a DC.
>
> Thanks.