I don’t know. I think they did not, unless there’s is an update (firewall or other package) related to your issue. You can track recent updates from Updates for NethServer 7
Sorry I can’t try new install at the moment.
Note: moved some of your posts to a new thread to get it better organized and reducing cross-posting.
EDIT: for the network connectivity problem you could try clearing the firewall rules:
shorewall clear
Clear will remove all rules and chains installed by Shorewall. The firewall is then wide open and unprotected. Existing connections are untouched. Clear is often used to see if the firewall is causing connection problems.