I have a Distro running and just adding in VVX400 units and these new phones will not tftp down a config file, I have tried multiple firmwares on the phones with no change
Phones show error cannot download MAC.cnf
checked tftp and it is running, restarted service no change, restarted machine no change.
shutdown iptables firewall with no change, all IP501 and IP550 units will tftp just fine just not the VVX400 units
Info:
FreePBX 12.0.76.4
All Phones are on the same network as the pbx so no NAT issues