Mitel 53xx phone stuck in DHCP Discovery mode
Posted on 2011-04-25
I am trying to install a Mitel phone ( believe it is the 5320) but it is stuck in DHCP discovery mode.
The user is a consumer and is getting their internet services from a Cable Modem (Videotron). The internet is working fine.
I have done the following:
- switched routers (no impact)
- removed the router (no impact)
- tried powering it with a PoE brick and with a Cisco switch (no impact)
One weird thing that happens is when a desktop PC and the phone are connected to 2 LAN ports in the same router, when the phone is plugged in and goes into DHCP discovery mode, the desktop PC loses almost all connectivity with the internet.
I am stumped, and I need some help to understand how to further diagnose and fix the problem.