Thank you.
I used systemd-analyze critical-chain but we did not log the output from the different machines, we’ll do it.
I remember have checked all the NetworkManager setttings for every computer and all the users on every system could use NM.
I set autonegotiation in order to have the 1Gb ethernet be choosen on every computer.
When full_audit is set: where could I check for the logs ? journalctl never page all the messages related to the samba shares use (for example from 1st sept to 1st december).
On the different client logs, there is nothing related to full_audit.
I did not yet switched to wicked instead of NM on all clients… was the last resort for me.