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Lee AndersonFlag for United States of America

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OWA Exchange 2007 Page Cannot Be Displayed

This last weekend we had a drive fail in out Exchange server. The drive was part of a RAID 5 array on which Exchange is installed. If may just be coincidental but around the same time our OWA and ActiveSync quit working as well. When you try to access OWA from internal and external, http and https, by hostname, fqdn and ip address, all users received the error below.

Internet Explorer cannot display the webpage
   
   Most likely causes:
You are not connected to the Internet.
The website is encountering problems.
There might be a typing error in the address.
 
   What you can try:
     Check your Internet connection. Try visiting another website to make sure you are connected.  
 
     Retype the address.  
 
     Go back to the previous page.
 
     More 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 have tried many things to include removing CAS and IIS and then re-installing, running UpdateOwa.ps1 from the EMS, and anything else I thought promising from my searches here on EE.

Hopefully someone can give some insight on what would be causing this. If I do go to http://hostname I do get the standard Under Construction Page so I know IIS is running properly for basic services.

My next thought was that there could be an issue with .NET2.0 on this machine and possibly try reinstalling it.

Thanks in advance.
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Busbar
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can you remove the OWA virtual directory and create it using
get-owavirtualdirectory | remove-owavirtualdirectory
then
new-owavirtualdirectory
If you have reinstalled IIS and CAS you should have done the following as well:

Set-owavirtualdirectory
Set the existing Certificate
Configure IIS
Configure OWA in EMC
Check and see if any updates have been installed recently.  I installed an Exchange rollup update and had this same issue.  Removing the update should resolve it if this is the case.
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I have tried running:
get-owavirtualdirectory | remove-owavirtualdirectory
then
new-owavirtualdirectory
As well as:
Set-owavirtualdirectory
Set the existing Certificate
Configure IIS
Configure OWA in EMC

As far as hotfixes applied, we have Exchange 2007 SP3 (8.3.83.6) install will no Hotfixes showing in Add and Remove programs under the Microsoft Exchange Server 2007 entry.
None of the items in my previous post have resolved my issue.

Thanks for the suggestions so far.
are you sure that you are using the correct name to access the OWA, can you try from the server and use https://localhost/owa or https://servername/owa
Yes I am using the correct hostname and using localhost on the Exchange server itself.

I believe my issue may be a .NET 2.0 issue and in fact I just did the following to test this.
  1. Setup a new website on the Exchange server using port 81. Added two documents (.html and created a .aspx with the appropriate web.config file). I can open the test html page but not the .aspx page and I used version 2.0 when I established the .NET page since the Default website is set to using .NET v2.0.50727.
  2. I then moved these files to an IIS server running on my machine and set the APPPOOL to use .NET v2.0.50727 and both files run fine.
I think my next step would be to remove/reinstall .NET v2.0.50727.

Any thoughts or concerns that I should have in doing this?
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Lee Anderson
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Resolved the issue with the steps provided in my last post.