Hi,

I am currently in the process of doing an exchange migration from 2010 to 2013.

The set up for 2013 is 4 CAS servers, split between 2 data centres and 4 mailbox servers split between the 2 data centres. The mailbox servers are configured in a DAG with 4 databases. Everything is correctly configured.

The issue we are noticing is moving the mailboxes. The users are using a mixture of Outlook 2010 and Outlook 2013, when the mailbox is moved to the 2013 servers it prompts for the password on the users Outlook but restarting Outlook or entering the password doesn't let it connect. On all the users (only 14 so far) we have had to recreate their mail profiles, this is not ideal when we have over 1000 users to move.

We have also noticed an issue where it is even worse on people who have full access to other mailboxes and these mailboxes are still stored on 2010.

Is there any way around this?

Thanks

Hi ,

1.What is the authentication set on the internal outlook anywhere in exchange 2013 ?

2.Did you have proxy server for the users to connect internet ? if so then you need to allow the autodiscover name and internal outlook anywhere name on the internet explorer proxy exceptions ?

3.Did you have set the auto discover internal uri for all the client access servers ?

4.Does users in exchange 2013 can able to login in to owa ?

5. Autodiscover names needs to be properly resolved to exchange 2013 servers or else to LB if you have ?Did you check that ?

6.More over you need to install the SAN certificate in exchange 2013 and also you need to check the names used on the exchange services are available on the SAN certificate.

Hi,

Is there any update with your issue?

Best regards,

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