RE: Exchange Server unavailable
- From: v-natliu@xxxxxxxxxxxxxxxxxxxx ("Nathan Liu [MSFT]")
- Date: Thu, 15 Sep 2005 05:19:41 GMT
Hello Avir,
Thank you for posting in the SBS newsgroup.
According to your description, I understand that the Outlook cannot connect
to the Exchange Server through LAN. If I have misunderstood the problem,
please don't hesitate to let me know.
To narrow down this issue, please answer and perform the following
questions and steps:
1. What's the exact error message when the Outlook cannot connect to the
Exchange Server through LAN?
2. To resolve these issues, try to determine if only one, only some, or
all Outlook clients are experiencing the symptoms.
1) If some but not all clients are affected, a common network connection
that is affecting only part of the network may be the source of the
problem. To resolve this issue, try the following methods:
A. Look for bad cables or connections.
B. See if driver or firmware updates are available for routers, switches,
or firewalls on the network.
2) If only one client is affected, TCP/IP or the NIC on the client
computer may be the source of the problem. To resolve this issue, try the
following methods:
A. Determine if a TCP/IP issue is the cause.
B. Reinstall the TCP/IP protocol.
C. Update the NIC drivers.
D. Replace the NIC.
3) If all clients are affected, TCP/IP or the NIC on the Exchange Server
computer may be the source of the issue. To resolve this issue, try the
following methods:
A. Determine if a TCP/IP issue is the cause.
B. Reinstall the TCP/IP protocol.
C. Update the NIC drivers.
D. Replace the NIC.
4) Determine if the Maximum Transmission Unit size settings in Windows
2000 SP2 is the cause. For additional information about this issue, click
the following article numbers to view the articles in the Microsoft
Knowledge Base:
301337 (http://support.microsoft.com/kb/301337/) PMTU detection may not
work after you install Windows 2000 Ss
301117 (http://support.microsoft.com/kb/301117/) Slow performance
transferring large data blocks with RPC
120642 (http://support.microsoft.com/kb/120642/) TCP/IP and NBT
configuration parameters for Windows 2000 or Windows NT
5) If a driver or firmware upgrade is not compatible with your version of
Outlook, go back to an earlier version of the driver or firmware.
3. If the issue still persists, please run 'eventvwr.exe' (without the
quotation marks) on the command prompt on the SBS 2003 Server and the
problematic workstation, and check if there are any error messages about
this issue, then paste the full context in your reply post.
More information:
258495 XCLN: Troubleshooting Client Connectivity Issues Using Command Line
http://support.microsoft.com/?id=258495
320843 OL2002: (CW) Outlook Connectivity Issues--Outlook Is Slow or Stops
http://support.microsoft.com/?id=320843
How to troubleshoot connectivity issues that are caused by RPC client
protocol registry entries
http://support.microsoft.com/default.aspx?scid=kb;en-us;325930
I appreciate your time and cooperation. If anything is unclear, please feel
free to let me know. I am looking forward to hearing from you.
Best regards,
Nathan Liu (MSFT)
Microsoft CSS Online Newsgroup Support
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--------------------
>Thread-Topic: Exchange Server unavailable
>thread-index: AcW4SO7iYOw3cb7kRxSUbbJgvZG+1A==
>X-WBNR-Posting-Host: 218.80.205.58
>From: "=?Utf-8?B?QXZpcg==?=" <Avir@xxxxxxxxxxxxxxxxxxxxxxxxx>
>Subject: Exchange Server unavailable
>Date: Tue, 13 Sep 2005 02:53:03 -0700
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>
>Hi All,
>
>I am a newbee to SBS 2003. we have one SBC 2003 server and one terminal
>server. All the users see their emails in Outlook on the terminal server.
Me
>and one more user works on their laptops and connect to the SBS server
>(exchange server) locally, we work in the cached mode so that we can keep
an
>offline copy of our emails.
>
>from last few days, suddenlty we cannot connect to exchange server from
our
>outlook (from laptops). we connect it through LAN as usual.
>
>we have not changed any settings.
>
>Do you have any idea what went wrong.
>
>Any clue will be highly appreciated.
>
>Thanks
>Avir
>
.
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