Solved Phone config changes

[RTM]

We have a 3CX phone system configured as a DR solution, to see how it works before swapping over. It's been fine, but we hit a bit of a problem last week - the Grandstream GPX1625 handsets all suddenly disabled their PC ports. Nobody had made any config changes, so it has been a bit of a mystery.

If I remove all of the 3CX information from a handset's config and restart, the port is enabled as is default.
I have done the above with a couple of phones before adding them back onto the system, and the port has stayed enabled on one.
If I change the port to enabled in the config, save, and reboot - it goes back to disabled.

The phone config in 3cx:

<!--
PC Port Mode. 0 - Enable, 1 - Disabled, 2 - Mirrored. Default is 0
--><!-- Number: 0, 1, 2 -->
<!-- Mandatory -->
<P1348>1</P1348>

We've never changed any template or config settings. Assuming we never find out why this suddenly changed; could anyone suggest a method of changing this setting for all of our handsets?

 

[Saqqara]

Have you upgraded to v16, as the PC port was disabled with the initial phone config

Update the templates and firmware - https://www.3cx.com/community/threads/no-internet-access-on-pc-port.64754/

 

[RTM]

Ah yes; that would do it - our system states that it's version 16. Automatic updates!

I noticed an outstanding template update earlier, which I installed, but it hasn't corrected the issue on the handsets. Is there a way to push it out, or do I need to remove and add each phone?

 

[Saqqara]

Select the phones, and click on 'Reprovision' tab under Phones

If the phones where provisioned thru 3CX, the updates will get pushed out every 24hrs.

Note : this may restart your phones.

 

[RTM]

Alas that didn't work, but going into the phone, deleting the handset, and adding it back in did the job. Thank you for your help!