Ever since I hooked my printer up to the Ethernet (over a patch panel), it makes a ticking sound exactly every three seconds.
Before, it was connected via Ethernet cable to a Raspberry Pi that served as WiFi adapter, and that setup didn’t tick.
Update: The ticking stopped after deactivating DHCP. It’s a Kyocera Ecosys M5526cdn.
I work in IT support and would probably put a bomb in a printer. Can’t support it if it’s blown up
If it’s blown up you just have to install and configure a new one.