Lost connection with FreePBX on Sangoma – No firewall or UDP blocks detected

Commercial Modules Sangoma Talk / Software Phone
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Hello Community,

I am currently experiencing an issue with “Lost connection with FreePBX” on a Sangoma system.

Here is what has already been verified:

  • UDP configuration has been validated.

  • No firewall blocks detected on the network side.

  • Required ports are open.

  • Windows Firewall on the client computer has been checked and there are no blocks.

  • Network connectivity between endpoints is stable.

  • No packet loss detected.

Despite these validations, the system still shows intermittent or persistent “Lost connection with FreePBX”.

Has anyone experienced a similar issue?
Are there additional logs or specific modules I should review (Asterisk, SIP settings, etc.)?

Any guidance would be greatly appreciated.

Thank you in advance.

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