Resolving external OWA access problem

  • From: "Nicholas Palmer" <NICK@xxxxxxxxxxx>
  • To: <isalist@xxxxxxxxxxxxx>
  • Date: Wed, 14 Dec 2005 13:20:20 -0800

Hi there everyone

Got a strange problem with OWA.  First, my config :

Exchange 2003 SP2 on Windows 2003 SP1
ISA 2000 on Windows 2000 Server SP4

Now, my OWA had been working fine since I upgraded to Exchange 2003
sometime in late 2003.  Then about a month ago, the certificate that I
used expired.  I was getting a message whenever I tried to access the
site complaining about the certificate, so I went to the Exchange server
and renewed the certificate from there and then the problem went away.
It seemed strange that I didn't have to do anything on the ISA server,
but things worked fine so I didn't' worry about it.  Then last week the
the whole thing stopped working.  Now, I should say, I can access the
site fine internally.  Its only when I try and access it externally that
things don't work.  I don't even get the message about an invalid
certificate.  I just get nothing.  IE thinks for a while and then just
seems to go back to the page where you were, as if nothing had happened.
So, seeing as I needed to apply SP1 to Windows 2003 server and SP2 to
Exchange 2003 I went ahead and did that thinking it might shake some
things up and make things work.  Well, no luck.  So next, I went to the
Exchange server, and exported the renewed certifcate and imported it
into ISA server, since on the ISA server it showed it as expired.  That
all seemed to work fine, but still no joy with the OWA externally.

So, I'm stumped now and was hoping that somebody could point me in the
right direction as to where to start looking for some clues as to whats
wrong.  I've looked in the event logs but I don't see anything
indicating any kind of error there.  I'm not sure which logs to check to
see if the traffic is coming thru.

Any help would be greatly appreciated,

Thanks
Nick

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