Comment 10 for bug 1792965

After reviewing all the logs, I still don't have enough information to determine why the DHCP is failing to start with the following message "There's already a DHCP server running.". I've tried to reproduced locally and have been unsuccessful.

Could you please try something after you remove/purge MAAS:

rm -rf /run/maas/dhcp

That should ensure the pidfile is removed, which i would think is the only state kept in disk that could prevent isc-dhcp from starting with the message that other DHCP server is already running.