Exchange 2003 | NSPI Proxy failed to connect to Global Catalog

  • From: "Dellanno, David" <DDellanno@xxxxxxxxxxxx>
  • To: "[ExchangeList]" <exchangelist@xxxxxxxxxxxxx>
  • Date: Mon, 18 Jul 2005 10:06:34 -0400

Hi everyone,

        We have deployed MOM 2005 to monitor our Exchange server farm
and have applied the Client Side Monitoring to test the mailbox mail
flow.   We would receive a MOM warning message stating the following:

Alert Description : NSPI Proxy failed to connect to Global Catalog
servername.companyname.com over transport Tcp/Ip. This server is down or
unreachable. Clients will not be directed to this GC until it is
available again.

Followed by a MOM Critical Error

Alert Description : Problem in accessing Directory Service caused Logon
failure Exchange Server:"SERVERNAME" MDB:"A-H Storage Group\A-D1 Mailbox
Store" Mailbox:"SERVERNAMEMOM" Error: The information store could not be
opened. [MAPI 1.0 - [MAPI_E_LOGON_FAILED(80040111)]] This event was
generated by the script: "Exchange 2003 - MAPI logon verification"

I have been look all over to figure out this problem but none of my
research have pin-pointed exactly what causes this NSPI Proxy failed to
connect to Global Catalog.  I couldn't event get a Q-article that is
very close to this error message.

The only trend that we have pin-pointed this error, is to one of our
three domain controllers.  It is consistently point the error at a
specific domain controller.

Any help will be appreciated

Thanks again,

Dave.
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