Multiple managed switch models in the past didn't support changes to VLAN 1; no tagging, nor removal of this VLAN from selected ports. One old forum thread about this subject is this: https://community.tp-link.com/en/business/forum/topic/96245 .

I have a TL-SG1024DE v1 which also suffered from this, but currently this model is already at it's v7 hardware version. It's unclear to me if these later models still lack the ability to make changes to VLAN 1 or if later models now have firmware which allow changing this VLAN .

Is this issue still present on recent models of these switches TL-SG1024DE / TL-SG1016DE?

Has (beta)firmware ever been released for those older versions, like my TL-SG1024DE v1, which enable editting VLAN 1?

Regards,

SteelyDunes