We ran into a nasty bug on Windows Server 2019 and I can't find any KB articles on it. It's really easy to replicate.
1. Install Windows Server 2019 Standard with Desktop Experience from an ISO.
2. Install Failover Cluster Services.
3. Create new cluster, on the 4th screen, add the current server name. This is what it shows:
4. Install .NET 4.8 from an offline installer. (KB4486153) and reboot.
5. After the reboot, go back to the same screen of the same Create Cluster Wizard and now it looks different:
Now we are unable to type in a 3 digit IP in any of the octet fields. It accepts a maximum of two characters.
Has anyone else encountered this? It should be really easy to reproduce.