How do i close an already open port?

23 Feb 2009 3:13 PM

Andykj

Situation...
an outlook 2007 client will not connect to exchange 2003. This client is
normally OK along with all the other clients on this exchange server but
today the exchange server is holding ports open to the client, even when the
client is not on the network. the client has been rebooted to completely
clear all its ports, however the exchange server continues to hold 4 ports
open to the client - this is preventing the connection between the client and
server for outlook. the ports are 2398,2403,2405 and 2407. This has happened
before but unfortunately i did not record the port numbers that were causing
the issue. all 4 ports show as 'established' when i do a netstat -a on
exchange.
Previously, in order to resolve this i had to pull the cable out of the back
of exchange and give it time to drop all connections before i could plug back
in. This is a sledge hammer fix and obviously knocks the entire client base
off exchange.

Is there a way i can kill those specific ports so that a new set can be
established with the client without disrupting all my other users?

Thank you!

23 Feb 2009 3:20 PM

Oliver Moazzezi [MVP]

Hi,

I have not seen this issue, but have you considered just dismounting the
store the user resides on - far less destructive than pulling the enthernet
cable out.

Oliver

23 Feb 2009 3:32 PM

Rig

That would have pretty much the same effect, all my users are in the same
store. I'm trying to avoid disrupting anyone except this problem user.

I take it you're not aware of a way to kill/close a specific port on WS2003?

Thanks for the reply... :o)

Show quoteHide quote

"Oliver Moazzezi [MVP]" wrote:

> Hi,
>
> I have not seen this issue, but have you considered just dismounting the
> store the user resides on - far less destructive than pulling the enthernet
> cable out.
>
> Oliver
>
>
>

26 Feb 2009 12:00 PM

Rig

I can't believe there isn't a way to do this - does anyone know how? this is
a PITA ;o)

26 Feb 2009 11:32 PM

Andy David {MVP}

On Thu, 26 Feb 2009 04:00:08 -0800, Rig
<R**@discussions.microsoft.com> wrote:

>
>I can't believe there isn't a way to do this - does anyone know how? this is
>a PITA ;o)

I dont understand why. Do you have the ports hard-coded in a firewall
or something?

27 Feb 2009 3:39 PM

Rig

"Andy David {MVP}" wrote

> I dont understand why. Do you have the ports hard-coded in a firewall
> or something?

Nope, read my original post - nothing is hard coded, the ports just seem to
get 'locked' open on the exchange server. Nothing short of dropping the
network connection altogether clears them.
Do you know of a way to manually clear specific ports in WS2003?

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