Hello,

I've got a problem with a  TL-SG2424P (HW : TL-SG2424P 1.0 , FW : 1.0.7 Build 20141219 Rel.33340(s) ).

We have 2 Vlans.

VLAN 1 (data) : untagged for all ports

VLAN 2 (voice) : tagged for all ports

PVID for all ports : 1

1 port won't keep the PVID 1.

When I set it, it says it has been changed.

A few seconds later, when I refresh the page, the PVID has automatically changed to 2.

On the screenshot, it's port 20.

I don't understand what's going on.

The same thing has already happened with another port (I can't remember which one), but then I was able to set it back to PVID 1.

What can be the problem ?

Thanks for the help