Hi,
What Windows version are you using? Did you try to create another domain user, add it to the ‘Domain Admins’ group, and then, log in with it and try to use the RSAT again?
Also, did you add any custom rule in the firewall that might be causing this issue?
Finally, you can try to reduce the debug level of Samba, so you cannot see those messages, however, if I were you, I would keep it as it is now.
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“This world is ours, and by the Holy Light we will keep it safe, now and forever".