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Solved All Yealink Phones No Longer Connecting to GCE Hosted 3CX

Discussion in '3CX Phone System - General' started by Brett Coleman, Nov 16, 2017.

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  1. Brett Coleman

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    Overnight all of our 40+ desk phones stopped working. We have mostly a mixture of T32G and T48G.

    All of them connect using a SBC running on a Windows server. I have rebooted the server and also restarted all services on the 3CX managment console. Everything is green and running.

    I am concurrently checking to see if the WAN/Firewall group has made any changes.

    What other things should I be checking?

    Thanks in advance.
     
  2. StefanW

    StefanW Head of Customer Support and Training
    Staff Member 3CX Support

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    is the IP the same as before? Do you static IPs in google? Can you access the 3CX MMC?
     
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  3. Brett Coleman

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    Yes to static IP and full access to the MMC. I can see that phone and pc clients are connected.
     
  4. YiannisH_3CX

    YiannisH_3CX Support Team
    Staff Member 3CX Support

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    Check the IP blacklist of the PBX located on the dashboard in case your remote locations IP is blacklisted.
     
  5. Brett Coleman

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    Looks like a firewall issue. Phones are all back online.
     
  6. YiannisH_3CX

    YiannisH_3CX Support Team
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    Glad to hear the issue is resolved
     
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