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.
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.