VPN Changes Do Not Get Auto-Provisioned

[joe1st]

We have about 30 different sites deployed, all using Yealink phones connected via the built-in OpenVPN functionality. All phones were provisioned via auto-provisioning which correctly downloaded all settings, including the VPN files.

The issue is that if we ever make a change to the VPN (new certificate, for example), the phone does not update the VPN. All other settings that we change on the phone are quickly updated via auto-provisioning, but the VPN simply doesn't get updated. It will keep the original configuration unless we factory default the phone and re-provision.

This has been an ongoing issue for years now, over multiple firmware versions.