Hello Lukasz Florek, Thank you for posting in Q&A forum. There is no Find field above I marked on your screenshot.
In my lab, I installed the AD Snap-Ins on one member server, then I can find and view the AD object Properties.
1.Please check if you can perform the same operations on AD DC.
2.Or if you can install RSAT on another client or member server, then check if you can perform the same operations on that client or member server.
3.Please check all the ports that AD required between this machine and Domain Controller are open.
4.Please check if this machine can access the domain network and domain controller.
I hope the information above is helpful.
If you have any questions or concerns, please feel free to let us know.
Best Regards,
Daisy Zhou
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