: Rule out hardware failure by swapping the Ethernet cable or plugging the phone into a known working port used by another IP phone. Advanced Fixes
: Mitel phones often operate on a specific Voice VLAN. If the switch port isn't configured to "tag" the voice traffic or if the DHCP server isn't listening on that specific VLAN, the discovery process will fail. mitel-5320e-ip-phone-stuck-on-dhcp-discovery
: 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. : Rule out hardware failure by swapping the
When a Mitel 5320e IP phone Go to product viewer dialog for this item. : Ensure the Ethernet cable is securely plugged
is stuck on "DHCP Discovery," it means the device is powered on but cannot obtain an IP address from your network's DHCP server . This is a common hurdle during setup or after network changes. Core Troubleshooting Steps
Navigate to and disable DHCP to enter a static IP, Subnet Mask, and Gateway.