I had disabled the Content Indexing for several mailbox databases during a cross-forest Exchange migration, and needed to rebuild the indexes. A quick google search resulted in this solution, and I did what was described in that article:

Had an issue recently where the command “netdom query fsmo” failed with Access denied or Access is denied from an administrative server in our domain. Other symptoms include not being able to change domain controller in Active Directory Users and Computers.

Recently I had to set default calendar permissions for all the users in our Exchange Organization.

I had problems with installing windows updates on an offline Windows Server 2016. The Windows Update dialog would just stop on 0%, and nothing else would happen. If I connect the server to the internet and choose updating from microsoft online, the update runs fine. I had several of these servers to set up, and wanted to find out what caused this.

Edit 10.07.2017: Microsoft claims to have fixed this issue in the following update: https://support.microsoft.com/en-gb/help/4022723/windows-10-update-kb4022723

Multiple error messages like this in the application log:

• Failed to start listening (Error: 10049). Binding: [fe80::xxxx:xxxx:xxxx:xxxx%x]:25.
• Failed to start listening (Error: 10049). Binding: [fe80::xxxx:xxxx:xxxx:xxxx%x]:717.
• Failed to start listening (Error: 10049). Binding: [fe80::xxxx:xxxx:xxxx:xxxx%x]:465.

Ending with:

When trying to map a network share from a server, I encountered some strange issues:

Encountered this gem of an error message:

SSL error 4: The Operation Completed Successfully

Recently I set up a Load Balanced AD FS 3.0 for a customer. Below I will try to outline the steps needed to accomplish this.

Encountered an error on Windows Server 2016 today (Build 1607), where random system applications would give me “The Stub received Bad Data” on first launch. Second launch, no error. Another symptom was that Windows Update just could not get past “Downloading updates 0%”.