Exchange 2016 – QuorumGroup in failed state (Test-ReplicationHealth)
I have 2 x Exchange 2016 servers (running on Windows Server 2016) with a single DAG containing 2 databases. I also have a File Share Witness configured on a 3rd server running Windows Server 2016. This has been working perfectly…
User can’t access on-prem mailbox after migration to Exchange Online
After migrating a user mailbox to Exchange Online (from Exchange 2016) the user could no longer access some shared mailboxes that are still hosted on-premise in Exchange 2016 (permissions are fine, they could access them prior to being migrated). When…
User can’t access mailbox after migration to Exchange Online
After migrating a user mailbox to Exchange Online (from Exchange 2016) the user could no longer access their mailbox in Outlook, it gave no error just behaved as if it was offline. I tried removing the profile and creating it…
You can’t use the domain because it’s not an accepted domain for your organization
While trying to migrate a mailbox from Exchange 2016 on-premise to Exchange Online using the New-MoveRequest cmdlet it failed and returned this message: You can’t use the domain because it’s not an accepted domain for your organization While checking the…
Exchange 2016 – “Application cannot be started” when running Hybrid wizard
While trying to run the Hybrid Wizard in Exchange 2016 I get a message box: Application cannot be started. Contact the application vendor. Clicking the Details button opens a log file, and this line half way down stands out to…
Exchange 2016 – WinRM connection fails when opening Exchange Management Shell
While opening the Exchange Management Shell on an Exchange 2016 server it failed to connect to any of the servers in the environment, giving the following error: Connecting to remote server xxx.mydomain.com failed with the following error message : The…
Exchange 2016 – Error 500 when running Hybrid wizard
While trying to run the Hybrid wizard in Exchange 2016 (the link at the bottom left of the Exchange Admin Centre) I get a HTTP 500 error after logging in with my Office 365 credentials: It may be just coincidence…
Exchange 2016 – error 5506 when installing cumulative update
While installing Cumulative Update 14 (CU14) on one of my Exchange 2016 servers it failed at step 10 (Mailbox role: Transport service) with the following error: An unexpected error occurred while modifying the forms authentication settings for path /LM/W3SVC/1. The…
Exchange Server 2016 CU readiness checks error
I have downloaded the latest cumulative update (CU14) for Exchange Server 2016 and while running the setup (elevated) I receive several errors in the readiness checks. These include: The mailbox server role isn’t installed on this computer and various others about…
Download Address Book in Outlook generates error 0x80190197
Users at a new remote site have reported that they are unable to download the offline address book (OAB) in Outlook as it generates an error: Task ‘user@domain.com’ reported error (0x80190197) : ‘An unexpected error has occurred.’ The Exchange environment…