In trying to bring the interface up with "ifup enp1s0", I get
ifup: unknown interface enp1s0.
How is that possible ? It was working before the system suspended ?
Checking /etc/network/interfaces, there's no entry for the network interface. Guess that explains the error message.
Edit and add interface details in /etc/network/interfaces
# The primary network interface
iface enp1s0 inet dhcp
Bring up the interface
Internet Systems Consortium DHCP Client 4.3.5
Copyright 2004-2016 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/
Listening on LPF/enp1s0/6c:4b:90:62:4d:42
Sending on LPF/enp1s0/6c:4b:90:62:4d:42
Sending on Socket/fallback
DHCPDISCOVER on enp1s0 to 255.255.255.255 port 67 interval 4
DHCPREQUEST of 192.168.1.34 on enp1s0 to 255.255.255.255 port 67
DHCPOFFER of 192.168.1.34 from 192.168.1.1
DHCPACK of 192.168.1.34 from 192.168.1.1
RTNETLINK answers: File exists
bound to 192.168.1.34 -- renewal in 98737 seconds.
Interface appears to be working !