Panasonic TGP500 Hanging during tftp provision

I’m trying to provision a Panasonic TGP500 portable phone. I’m able to provision without issue my Sangoma Phones.

While watching the TCPDump of the tftp communication, I can see that it requests it’s configuration and then just hangs.

17:15:20.035385 IP (tos 0x0, ttl 64, id 0, offset 0, flags [none], proto UDP (17), length 59) 10.x.x.11.52180 > 10.x.x.210.tftp: 31 RRQ "Config008xxxxxxx.cfg" octet

I’m using Endpoint Manager 13.0.83.


I believe this issue is related to my network topology. My FreePBX install is a virtual machine in Proxmox, and I think somehow the bridge interface that it uses is dropping some aspect of the client tftp response.

I decided to just switch to http for provisioning and everything works fine now.