Exchange 2010 Topology

2 weeks ago my site was using Exchange 2007.
I went on vacation and as part of a planned migration another team updated my site to Exchange 2010.  Upon returning I found problems with the web mail server which is hosted at another site and my site has been having issues getting to our mailboxes via OWA.  Once I moved the mailboxes in question back to the original server users were able to get OWA and the Outlook client worked.

Any ideas on what I should check would be appreciated.
iNetSystemAsked:
Who is Participating?
 
AmitIT ArchitectCommented:
0
 
MikeIT ManagerCommented:
what exactly was the problem?  I'd make sure the internalURL for OWA is set correctly on the CAS server.
0
 
AmitIT ArchitectCommented:
Question is not clear, can you provide more info, like error details etc. and what and where it is changed. If you made any dns changes, then you need to highlight those too.
0
Making Bulk Changes to Active Directory

Watch this video to see how easy it is to make mass changes to Active Directory from an external text file without using complicated scripts.

 
Adam BrownSr Solutions ArchitectCommented:
I agree that some more detail would be useful, but generally the error you are seeing can be caused by not having a CAS server in ever AD site with a Mailbox server for Exchange 2010. It can also be caused by users connecting to a CAS server that is in the same site as a Mailbox server that doesn't host the user's mailbox if their mailbox is on a mailbox server in a different site. This particular problem can be resolved by setting up CAS Proxying. But what does your environment look like right now? We would need to know at least that to start answering your question.
0
 
iNetSystemAuthor Commented:
The latest out of the site hosting web mail is that once the OWA server comes up it last about 5 minutes before it stops working and that there are indications that too many sockets are open?

Is there a particular place all Exchange systems must be in AD?
0
 
iNetSystemAuthor Commented:
error message follows when trying to login to OWA:

A server configuration change is temporarily preventing access to your account. Please close all Web browser windows and try again in a few minutes. If the problem continues, contact your helpdesk.
0
 
iNetSystemAuthor Commented:
Update - the CAS server has event ID's 1109, 4002, 1053 - Red Splats...
0
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

All Courses

From novice to tech pro — start learning today.