Forum Discussion
RicardoGDR
Apr 11, 2024Copper Contributor
Problems after upgrade to CU14
Hi, I'm in the process of migrating from Exchange 2013 CU23 to Exchange 2019. I installed Exchange 2019 CU13 on Win2022 Server, in coexistence with our 2013 and everything was looking good. B...
AnnTaeYoun
Apr 30, 2025MVP
RicardoGDR Please Exchange Server 2019 try add "Exchange Trusted Subsystem group","Organization Management" of local administrators groups Permission!
StoredotEXE
Sep 30, 2025Copper Contributor
I have the same issue. I checked on this. Those groups are in local administrators. This feels like an undocumented issue with IPv6 or TLS. I have IPv6 disabled in the registry and on the NIC and the server was configured this way prior to install of SE.