Solved ISP Changed now 3CX Mobile App wont Connect

[TaylorStevens23]

This morning we experienced an Outage with our ISP. We switched over 3CX to our backup ISP provider and contacted our SIP provider and updated our new IP. The dashboard information is showing the new IP in green and set to Static in the management console. The issue we are currently having is the 3CX mobile app is not connecting and calls will route internally but cannot route externally. If someone from outside the organization calls they show as connected in the receptionist view but the phone is not ringing on the callers side and they are not hearing any of our messaging from the IVR. The PBX shows that external calls into our main line are hitting our IVR but there is no answer on the external callers side. If you try to place an outbound call you get a busy signal.

We have a pro license and I see online it can take up to 6 hours to propagate. We made this change around 2-3 hours ago and still are having the same issues. Is there anything I am missing or is there a way to speed up this process?

• 3CX Version, Professional Annual 16.0.8.16
• Server OS, Debian 10
• Is the 3CX Server Hosted and where? On Prem
• Provisioning Method: Local
• Trunk Provider or Gateway Make/Mode: 123net
• Are custom Phone Templates being used: YES

 

[NickD_3CX]

...after we fixed it we briefly moved the the server to dynamic and back to static. We did not reboot the server or services due to users on the phones. Does this step need to be done?

We usually recommend switching to Dynamic, restarting the 3CX Services once, then waiting 30-60 minutes, then switch it back to "Static".

 

[TaylorStevens23]

We usually recommend switching to Dynamic, restarting the 3CX Services once, then waiting 30-60 minutes, then switch it back to "Static".

At the end of the day I was able to swap to dynamic and restart services then swap by to static and it did force the DNS to update. We are back in business. Thanks to all for the help!

 

[NickD_3CX]

Glad you managed to figure everything out and everything is up and running again!

I'll flag this one as 'Solved'.