Plug and Play issues

[poynter.net]

Having mixed success rate using PnP.

One customer, two sites, near identical setup (same switch model), one site PnP is fine, the other it doesnt work.

Also similar issue for our own network with SBC on it, PnP not working.

Checked that pbx is on the mcast, no vlans, all same subnet. Any ideas?

 

[YiannisH_3CX]

Hello @poynter.net

Please follow the steps mentioned in guide for troubleshooting PnP
https://www.3cx.com/docs/plug-and-play-ip-phone/

If this does not help then the next step is to use wireshark to capture what the phone is sending andif that reaches the PBX.