After reinstalling Debian—whether version 10 (Buster) or 11 (Bullseye)—one of the most common headaches is losing your network configuration. If your setup uses bonded interfaces (LACP / 802.3ad) for redundancy, the reload wipes out all those settings. The system comes up, but there’s no proper connectivity until bonding is restored.This guide walks through the exact steps we follow at SupportPRO to bring the network back up after a reload, get the bonds working again, and make sure SSH is accessible.
