Why do I get a "IP read error" on the screen of my TLA?

Why do I get a "IP read error" on the screen of my TLA?

The network factory default for the TLA7016 is DHCP. The TLA is expecting to see a DHCP server on your network and it isn't seeing one. To fix this, make sure that it can communicate with a DHCP server or set it to a static IP address. For more information, click here.