firewall failed

  1. pfsense Set-up

    Hi All, Looking for some help with this. I have followed the guides online and tried all the advice I have found in previous threads with little success. I am running 3CX V18 Enterprises on a Windows Server 2019 Virtual Machine on Proxmox behind a pfsense box as my router and firewall that has...

  2. Firewall Check failed - Mapping does not match - Barracuda Networks

    Hello, I run 3CX 16.0.655 on premise on debian linux. The server is behind perimeter firewall of Barracuda Networks. The Firewall check fails for reasons I don't know IOS App/Android App work fine. Admin Works fine. Webclients have no AUDIO calling *777 or any other extension. Calls from to a...

  3. 3CX firewall checker giving errors

    Hi, I’ve spoken with the team who manages our pfsense firewall here and we’ve opened all the necessary ports for the firewall checker, as listed below. The machine is in a network where NAT does not take place. The IP of the 3CX installation is the public IP. We can control the ports that can...

  4. 3CX on Windows server 2012 with 4 NIC cards, looking for a new 3CX rep.

    I have been struggling with Firewall test failure, outgoing emails from 3cx are delayed, one way audio when taking forwarded calls, all this for over two years now. My system is not typical mostly because of the way ATT and COX do the sip hand off, a dedicated NIC is needed for each.. I am told...

  5. Firewall Test Failing - All ports confirmed as forwarding

    Hi All, I am having trouble getting a 3CX install to pass the firewall tests. This is a snippet showing the fails: +-+-+-+-+-+-+-+-+-+-+-+-+ testing 3CX SIP Server... failed (How to resolve?) stopping service... done detecting SIP ALG... not detected testing port 55060... full cone test...

  6. Passing the firewall test

    I have a question on how 3cx supports clients that do need to pass the firewall test. The way we're running is there's a central office and 2 branch offices connected to the central office. As of now we have 3 digit dialing working between all 3 offices, as well as the 3cx PC client works...

  7. 3cx sip alg failed

    Just an.. maybe someone can help with this. The more recent version of 3cx (I am on current 15.5.9348.3 version) now fails the firewall test for the SIP ALG. I have tested with 3rd party firewall checkers and they report all is AOK. This is an more recent issue with the latest version of 3cx...
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