Today we are announcing the availability of the 2024 H1 Cumulative Update (CU) for Exchange Server 2019 (aka CU14). CU14 includes fixes for customer reported issues, a security change, and all previo...
Updated Feb 22, 2024
Version 11.0
Blog Post
Hello, we have tested this update on a single client and even thought the update was smooth and health checker reports everything OK, suddenly we have issues with Outlook being unable to search on the server at all, it just loads and loads for ever, sometimes even errors out with connection error even thought Outlook shows it's connected to Exchange.
If I set Outlook to offline mode it still gets stuck trying to connect to the server which makes no sense. This seems to be a mix of an Exchange connection bug with an Outlook bug also.
This is especially bad in Outlooks with delegated email accounts, those don't even search locally anymore unless I click "search this folder only and then click the link "search locally", then the local indexed emails appear. I tried setting up the client's email on my own machine it has the same issue, Outlook doesn't search even Offline with everything indexed. My own 365 account searches no problem.
EDIT: I should mention OWA has no search issues, it's super fast finding anything, just Outlook.