Mitel-5320e-ip-phone-stuck-on-dhcp-discovery Apr 2026

: Mitel systems often require specific DHCP Options (like Option 43 or 125) to tell the phone where the MiVoice Business controller is located. If these aren't set correctly in your DHCP server, the phone may loop during discovery.

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 mitel-5320e-ip-phone-stuck-on-dhcp-discovery

When a Mitel 5320e IP phone Go to product viewer dialog for this item. : Mitel systems often require specific DHCP Options

: If DHCP continues to fail, you can manually assign an IP address to the phone. This is a common hurdle during setup or

: 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.

Hold the (or the volume keys) while booting the phone to enter the configuration menu.