I'm having an issue where my clients can connect to Exchange 2013 from Outlook 2010, however they frequently get a credentials box asking for Username and Password.
I inherited a SBS2011 server which we have outgrown. It came with Exchange 2010. I wanted to upgrade to Exchange 2013 on a dedicated virtual server 2012. I hired a group who assisted with the migration but now my clients are still having some connectivity issues. Autodiscover seems to work and I got a new Exchange SSL but the clients still have issues with Outlook asking for their username and password as well as get a certificate error having the old domain name in the message. Shared schedules do not seem to work properly either. I have tried recreating the user account in Outlook but that didn't do it, although it did discover the settings and connect to the server. OWA works fine.
I believe the issue is that I need to insert the new certificate into the Autodiscover settings or add it to the clients manually, neither of which I know how to do.
I also want to shut down Exchange 2010 on the SBS but keep the rest of the services running until I have time and resources to move everything else. Will just disabling the Exchange services work?