: Ensure the Ethernet cable is securely plugged into the LAN port (not the PC port) on the back of the phone and connected to a live network switch.
Navigate to and disable DHCP to enter a static IP, Subnet Mask, and Gateway. mitel-5320e-ip-phone-stuck-on-dhcp-discovery
: This clears any residual configurations that might be blocking the connection. Unplug the power/Ethernet. Hold the # key while plugging it back in. When "Configure Phone?" appears, select * for Yes . : Ensure the Ethernet cable is securely plugged