The error turns up on new phones being added to the server via LAN. The server logs explicitly state that the phone is trying to use PNP but the server is rejecting this. PNP for LAN and WAN is enabled. Disabled PNP for LAN/WAN > rebooted server > Enabled PNP for LAN/WAN > rebooted, feature started ...

I'm trying to work out what could be triggering this error: Hardware: Server = Connect 324 on 9.1.8.9 Phone = 9312 that has been reset to defaults a couple of times now. Troubleshooting done: What does FMSPNP mean? Cannot find a clear answer here, FMSPNP doesn't appear to be part of the SIP protocol...