Register Unregistered Phone after 120 sec after subnet mask change

Discussion in '3CX Phone System - General' started by fahad10, Mar 15, 2018.

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  1. fahad10

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    Recently, due to shortage of IP addresses we had to change our network subnet mask from 24 to 22 - everything is working fine but phone is registering and unregistering

    Restarted server several times no effect
    gave phone static ip address no effect
    reconfigure the extension no effect

    kindly guide what to do ?
     
  2. giwm

    giwm New Member

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    This may be a dumb question, but did you remember to reconfigure your DHCP scopes appropriately?
     
  3. Saqqara

    Saqqara Active Member

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    Does this affect other devices on the network ?

    Within the phone web frontend, what is the server address - IP address or fqdn. If fqdn does this point to the correct internal IP address

    Have you tried whitelisting your internal IP address range ?
     
    #3 Saqqara, Mar 15, 2018
    Last edited: Mar 15, 2018
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