Yes the title is accurate.
The first Exchange 2016 server (ex1) was in an state where I was unable to update to the latest CU. I stood up Exchange server 2016 on ex2 and applied the latest CU. I've migrated everything, updated DNS, autodiscover, etc. As a test I've turned off ex1 to see if all runs smoothly without it but Outlook 2016 clients hang out, sometimes unresponsive for 5-10 minutes or even longer before loading the profile, while others open but stay in a disconnected state. I've looked through event viewer on the client and ex2 but find nothing relevant to Outlook. I'm not an Exchange guru to know where to look immediately so I need some logs to show me what's going wrong to troubleshoot. At this point I'm just guessing and here to ask for some assistance - please.
Where can I find relevant logs or related info to troubleshoot my Outlook client connection problems?
Am I missing anything when decommissioning the first Exchange server?
