The computer name is not resolved
I have four 3D printers here.
1 x Ultimaker 3
1 x Ultimaker 2
1 x Prusa i3
1 x Anet A8
Two of them (ANET A8 and Prusa I3) are connected via a thin client (debian-10.11.0-amd64-netinst) running Repetier Server (latest version).
Then I have two times Raspberry Pi Zero 2 W with the remaining two printers (both Repetier server image_1_3_0_v28).
Now to my problem:
Each server has a name. (3DPRTSRV1,3DPRTSRV2,3DPRTSRV3).
If I enter e.g. 3DPRTSRV1, the server cannot be found in the network via the name.
It works fine via the IP.
What can I do so that the server names can be resolved in a Windows network?
I can't get the ULTIMAKER 2 to run, it just hums. Marlin is set. I am at a loss.
Does anyone have any idea what the problem could be?