Hi Alex,
I even disabled the whole firewall for testing. No changes.
Yes, with given credentials of the domain-admin, I can access this path, on every node (ok, I only checked 3 ;-)), even the one I'm keep getting errors in TNI.
I can. Using cmd's runas.exe -> cmd -> services.msc with the domain admin credentials, even on the node I'm keep getting errors in TNI.
Actually, now it comes down to something like 2 oder 3 nodes having issues like described before. Strange, as they actually have the same settings, at least as far as I can tell..
EDIT:
Meanwhile, after running some scans, nearly every node-scan fails with a message like"SMB: path not found, RPC server not available".. No change to any config has been made.