Fanvil X5S - SIP Not Registered error message

[HemeryckConsulting]

Hi;

I am setting up a new Fanvil X5S phone to be used remotely (STUN) and I can autoprovision the phone but get Sip Register Failed. I have confirmed this extension is allowed to be used remotely, tried latest 3CX firmware and even the latest firmware from Fanvil, factory reset countless times, etc. The firewall test on the 3CX passes without error, in fact, I have some Yealink phones setup remotely (STUN) without an issue.

Any thoughts?

Leon

 

[Alphabetic]

Have you checked the logs in 3CX?

Possibly had your IP blacklisted?

Make sure you're back on FW version 1.12.9

Have you logged in to the phone's GUI and had a look over the settings it's got?

Is port 5060 open on your 3CX? Is it passing the FW test.