Disable “Waiting for network configuration” messages on Ubuntu boot

sudo vim /etc/init/failsafe.conf

I changed the first sleep command to

sleep 5

and then commented out the following lines:

$PLYMOUTH message --text="Waiting for network configuration..." || : sleep 40   $PLYMOUTH message --text="Waiting up to 60 more seconds for network configuration..." || : sleep 59

Just place a ‘#’ character at the beginning of each of those lines. Now it will just wait 5 seconds and then continue on.
To my surprise, the network was actually working just fine even though the script thinks it is not.

Just a note, do NOT remove the failsafe.conf file, otherwise it will hang the boot process indefinitely waiting for the network to be “configured.”