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3CX / Yealink passthrough VLAN issue (when phone is rebooted)
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maindriver Offline
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Question 3CX / Yealink passthrough VLAN issue (when phone is rebooted)

This is an example how our network works.

VLAN50 = vlan for phones
VLAN80 = vlan for computers connected to phones

Switch port is set to
50 untagged, 80 tagged.

In 3cx for the Phone Provisioning, VLAN Configuration, Enable VLAN for PC PORT 80

If I connect a phone up, it gets the correct settings, works on VLAN50 etc. Connecting a PC to the PC port after the phone has booted, will result in the PC being on VLAN80. However if we then reboot the phone, the PC port will at first be given VLAN50, we are then required to disconnect and reconnect the network cable to rest the network connection of the PC to get the correct VLAN.

Is there a way of telling the Yealink phones to hold off sending traffic to the PC port until the phone has fully booted? It seems to act as a dumb switch until it has booted and provisioned fully.

This is in a 150+ phone/pc set up, so making any other changes to the switches / configuration would be a real pain.

Thanks in advance.

3cx version
Professional Perpetual 15.5.15502.6License

Yealink T42S fw
Yealink T19P_E2 fw
07-30-2019 01:17 PM
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3CX / Yealink passthrough VLAN issue (when phone is rebooted) - maindriver - 07-30-2019 01:17 PM

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