I have no wired or wireless connection due to a problem with the NetworkManager.service that is masked. When i try your put systemctl reload NetworkManager, systemctl start NetworkManager and systemctl enable NetworkManager returns:
Failed to tart NetworkManager.service: Unit NetworkManager.service is masked.
So I put systemctl unmask NetworkManager but now it returns:
Failed to start NetworkManager.service: Unit NetworkManager.service not found.
How can I solve this problem?