asked on 2/26/2007

OWA Not Working After Internal IP Address Changes

I just changed our internal (private) IP addresses to prepare for some network changes. Everything is working fine except Outlook Web Access (OWA). We have an extranet set up at https://extranet.companyname.com, and I can log on to this and access our extranet pages, but when I try to go to the OWA portion (https://extranet.companyname.com/exchange), I get a 404 page not found error. This happens whether accessing from internally or externally and whether using URL or using IP address directly.

We have a Windows 2000 Server AD domain, with one Exchange 2000 (SP3) server that contains our mailboxes and another Exchange 2000 SP3 server set up as a front-end just for OWA. The only thing that was changed was the internal IP addresses of the servers. I figure there is some other place where I need to change the IP address, but I've looked around Exchange System Manager and IIS admin console, but haven't found it.

Any ideas?

bhaf

Exchange

Last Comment

bhaf

2/26/2007

timeshell

2/26/2007

Do you have a network address translation going on in your firewall that needs to be also updated to reflect the new internal IP address?

bhaf

2/26/2007

ASKER

I have a one-to-one NAT translation set up in our firewall so that the public IP address for the extranet (https://extranet.companyname.com) maps to the private IP on the front-end Exchange server. I know this is working because we can access our extranet home page there. It's just when we click our link to OWA (or enter it directly in the URL) that we have the problem.

bhaf

ASKER CERTIFIED SOLUTION

Sembee

2/26/2007

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bhaf

2/26/2007

ASKER

The web site is set to "(All Unassigned)". I tried setting to the specific IP - that didn't work. Tried changing back to unassigned - that didn't work.

I also tried rebooting the machine (which I don't think I did last week when I changed the addresses), but that didn't work. Searched the registry for the old IP address and found nothing.

bhaf

Sembee

2/26/2007

You haven't got connection restrictions or anything like that on the server? I have changed IP addresses loads of times and it hasn't caused a problem.

Simon.

bhaf

2/26/2007

ASKER

I figured it out, and it was just a dumb mistake! The IP address for the Default Web Site on the main Exchange server was still set to the old value. I had been doing all of my checking on the front-end server which was correct. Once I changed it to "All Unassigned", OWA worked again.

Thanks for pointing me in the right direction.

bhaf