Search results

  1. Solved Grandstream GXP2160 phones won't provision

    I apologize for the delay - I have confirmed disabling the DHCP option has resolved the issue. I was able to add a new phone to the network and provision it with no issues. Thank you all for your help, especially @Frederick Marcoux!
  2. Solved Grandstream GXP2160 phones won't provision

    Thank you for your help - I also opened a ticket with 3CX support and think we may have resolved the issue. They stated that DHCP options can interfere with the provisioning process. After disabling DHCP option 66, I was able to successfully provision a phone. I'll update shortly to confirm if...
  3. Solved Grandstream GXP2160 phones won't provision

    Sonicwall doesn't have SIP ALG as a specific setting, but I had already used the steps listed by Sonicwall to disable SIP ALG: https://www.sonicwall.com/support/knowledge-base/how-to-disable-sip-alg/210615065648977/. I'm still digging in the firewall - I wasn't seeing any traffic between the...
  4. Solved Grandstream GXP2160 phones won't provision

    They're on the same subnet and switch behind a Sonicwall TZ350 firewall. I've looked at the routing and couldn't find anything blocking traffic on the subnet, but will double-check. It's a fresh install from the 3CX Debian ISO (downloaded yesterday). As a test, I added BLF keys to the phone...
  5. Solved Grandstream GXP2160 phones won't provision

    That works - the test phone registered successfully. I'm still trying to figure out why it isn't pulling automatically as I have over 20 phones to set up for this system.
  6. Solved Grandstream GXP2160 phones won't provision

    Currently on 1.0.11.35. I've attempted to provision 3 separate GXP2160's, several were originally on 1.0.9.35.
  7. Solved Grandstream GXP2160 phones won't provision

    Attempting to set up a new system (3CX Professional 16.0.8.9), GXP2160 phones won't provision. The phones are on the same subnet as 3CX and are showing up in the phones tab, but aren't actually pulling any configuration. I've factory defaulted the phones several times with no change. The...