3CX Beginner Snoms losing connection

[john wright]

Hi i have a 3CX Hosted on a VPS else where, its working fine and firewall checker passes, but the Snom phones are losing connection every morning when we go back into the office, they provision through STUN and work for a while, put random times through the night they lose connection and de-register.

Restarting the phone does nothing, we have to re provision and the same thing happens again. a good few hours later.

What is causing the snoms to drop ?

We also have a Mikrotik RB2011 with 2 x fibre broadbands going into it, i think it has something to do with that as each broadband has its own static IP, and it swaps between the 2 (again may be not set up correctly)

I placed a Snom at home different network that that seems to be solid and hasnt dropped so i know its something in the office do i need to forward anything to the remote VPS from my internal router or may be the Mikrotik is blocking ports.

Dashboard says this
Extension 206 is unregistered, removed contact: sip:[email protected]:1280;line=xxxxxxx

That's 200 to 206 say the same. but my 207 at home works fine.


Thanks for any help.

 

[Mark Adams]

Have you checked in your dashboard to see if your public IP is listed under Blacklisted IP's? Had that happen for the first couple of days with a Fanvil phone (never happened with my Yealink).

After a couple of days it stopped happening. It's like the phone keeps trying to login to the portal with bad information and gets my IP blacklisted, and once I remove the blacklist the phone registers fine.

 

[john wright]

Hi thanks for the heads up but its not black listed, i have also added both of our broadband IP's to the allow list and it still happens.

:/

 

[Saqqara]

Have you configure the ports correctly as you have multiply devices at the same location

https://www.3cx.com/community/threa...etgear-nighthawk-x4s-d7800.54620/#post-225296

Probably best to install SBC, as you have already posted a question about it

 

[john wright]

thanks installing it right now hope is works