1920S Switch, no Auto Voice VLAN after port was TRK member

[SValdesVTG]

On two switches 1920S, P/N: JL386A, where after using 2 ports on each switch as TRK and then disabled the TRK and enable again the ports as user ports with the Auto Voice VLAN enabled, the phones don't get the voice VLAN auto, I must manually tag the VLAN on the port and set it manuall on the phone.

I know that factory reseting the switch will probably solve the problem, but the switch is in production and I can do it now. Any ideas that what I was missing to disable after disabling the TRK? Thanks.

[parnassus]

Resetting the whole Switch to its default configuration looks a little bit drastic.

What's about checking/verifying the Port configuration (Settings/VLAN/PVID/etc.) - against a default Port configuration - in order to make it default once again (after being configured to be a member of a Port Trunk Group) after you removed it by the Port Trunk Group?