Exchange 2010 OWA not working

I have a Windows 2008R2 domain with Exchange 2010. OWA was working but I would get the certificate error problem in the browser so I added a 3rd party certificate from Entrust for OWA access. After doing this, I can't access OWA at all. I get the error that Windows cannot display the page, with the following additional information.
This problem can be caused by a variety of issues, including:

Internet connectivity has been lost.
The website is temporarily unavailable.
The Domain Name Server (DNS) is not reachable.
The Domain Name Server (DNS) does not have a listing for the website's domain.
If this is an HTTPS (secure) address, click Tools, click Internet Options, click Advanced, and check to be sure the SSL and TLS protocols are enabled under the security section.

I get the same error inside the LAN and from the Internet.

I also can't access Exchange from the EMC or EMS now. However, the exchange server is running and I can send and receive email.

The external URL is https://mail.gssec.k12.in.us/owa

Any ideas?

Thanks,

Dave
dcadlerAsked:
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Narayan_singhConnect With a Mentor Commented:
What about certificate binding..

Go to iis > default web site > on rightside in action Pane click binding > from the box click on Https and click edit there you will have certificate which is in use make sure thats the correct certificate.

And i think there is "require SSl" checked on default website.... please remove it.

Do iisreset

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farazhkhanCommented:
Hi,

Make sure you have followed the correct steps for isntalling certificate for OWA in exhcange 2010, check this: http://telnet25.wordpress.com/2010/01/07/assigning-ssl-certificate-for-owa-exchange-2010-part-1/

Regards,
Faraz H. Khan
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farazhkhanCommented:
Hi,

Also read the part2 of guide as well: http://telnet25.wordpress.com/2010/01/07/assigning-ssl-certificate-for-owa-exchange-2010-part-2/

Regards,
Faraz H. Khan
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tmcgrCommented:
u can also remove the CA roll and re install it
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Narayan_singhCommented:
Uninstallin CAS role just for certificate issue .....? not a right solution.
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LeeDerbyshireCommented:
He said the CA role, not the CAS role :-)  But clicking on the link above works okay for me - I assume this is fixed now?
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dcadlerAuthor Commented:
The certificate binding suggested by Narayan_singh solved the problem with web access to OWA. However, I still can't run the Exchange Management Console or the Exchange Management Shell. This all happened when I installed the 3rd party certificate. Unfortunately, I didn't follow the process detailed in the link provided by farazhkhan (I wish I would have seen that link before I originally installed the 3rd party cert); I had installed the certificate the same way I did with SBS2008 and Exchange 2007 (which was the old domain I was moving from). I had opened IIS, and went to Server Certificates and made the request there for a 3rd party certificate, then installed the completed certificate through that process.

Apparently, this messed up linkage with EMC.

I had opened another question in Experts Exchange specific to this It is at this link;

http://www.experts-exchange.com/Software/Server_Software/Email_Servers/Exchange/Q_25029292.html?cid=1575#a26206215

I will go ahead and assign the points to Narayan_singh since his suggestion about the binging solved the web OWA issue. Those of you still interested in helping me with the Exchange EMC issue, please go to the link above.

Thanks,

Dave

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Narayan_singhCommented:
Thanks :-)
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