Unable to remotely access Exchange 2013 (Outlook, OWA' ActiveSync)

Posted on 2014-09-26
Medium Priority
Last Modified: 2014-09-28
A client access server has been uninstalled.  But two other all roles Exchange server 2013 CU6 (installed on Windows 2012 R2)   were already running although the previous CAS was managing everything.  

External DNS (A record) are pointing to the right place (autodiscover, hosts, mail.domain.com)   Outlook Anywhere has been configured as well as all virtual directory.   The Watchguard were already configured.  

The internal mail DNS are pointing to both servers.  The SRV record was already there,  

But for a reason or another we can't connect remotely.  Sometimes OWA is running for a les than a second, then I'm getting the HTTP 404 message.  

I'm confused.  I should have missed something.  

Thank you for your help
Question by:quadrumane
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
LVL 63

Assisted Solution

by:Simon Butler (Sembee)
Simon Butler (Sembee) earned 800 total points
ID: 40347334
Does it work internally?
On the server itself? You should be able to go to https://localhost/owa and get connected (with SSL warnings). If that doesn't work, then you need to look at the URL configuration, IIS configuration and virtual directory host names.

LVL 31

Accepted Solution

Gareth Gudger earned 1200 total points
ID: 40348715
A client access server has been uninstalled.  But two other all roles Exchange server 2013 CU6 (installed on Windows 2012 R2)   were already running although the previous CAS was managing everything.  

Ditto what Simon said.

Just to clarify, you originally had 3 servers? Two multi-role and one just acting as a CAS? You uninstalled the dedicated CAS, so you only have the two multirole servers? And the external DNS and firewall were already pointing to the two multirole servers? I assume the WatchGuard is your firewall. Is that acting as a load balancer as well?

Author Comment

ID: 40348839
Sorry I didn't answer earlier.  We solved the problem the same day.  The SNAT policies for the new servers  have been created months ago.  The new servers were not even in production.  

But it was set to "ANY-TRUSTED" instead of "ANY EXTERNAL" for the incoming traffic.  

No matter what you both provided me with some very good advices.  Gareth you knew somehow the watchguard was where to look at.  

I'll ask another question.  It is about Autodiscover, multiple CAS with no load balancers.  

Thanks again

Featured Post

Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This article lists the top 5 free OST to PST Converter Tools. These tools save a lot of time for users when they want to convert OST to PST after their exchange server is no longer available or some other critical issue with exchange server or impor…
After hours on line I found a solution which pointed to the inherited Active Directory permissions . You have to give/allow permissions to the "Exchange trusted subsystem" for the user in the Active Directory...
In this video we show how to create an Accepted Domain in Exchange 2013. We show this process by using the Exchange Admin Center. Log into Exchange Admin Center.: First we need to log into the Exchange Admin Center. Navigate to the Mail Flow >> Ac…
This video demonstrates how to sync Microsoft Exchange Public Folders with smartphones using CodeTwo Exchange Sync and Exchange ActiveSync. To learn more about CodeTwo Exchange Sync and download the free trial, go to: http://www.codetwo.com/excha…
Suggested Courses

777 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question