Can you share your config.g or tell us what the networking section commands are doing at startup? Is it set with a static IP address, or a DHCP address?

When you try and connect to the Duet through the browser, are you using a URL like http://duet.local or are you using an IP address?

@phaedrux said in Duet 2 Ethernet Board Not Connecting:

Do the ethernet port lights illuminate on the Duet when connected to the switch? Do the lights on the switch light up?

@phaedrux said in Duet 2 Ethernet Board Not Connecting:

When and where did you purchase the Duet?