@MaLiang , You better return them while you can, because TP-link is very slow with updates and they might even never add this option.

@PCH , I also did some tests (using Fing and a laptop). Fing "sees" all the wired and wireless devices. But indeed, to most of them you cannot connect. However, to the main router (the one that is...

@TP-Link_Deco , No, I don't mean that option, I mean true VLAN, so my tp-link switches can separate normal traffic from guest traffic. Thus the option that is described for the M5 here, I would also...

@PCH , I thought it was, but you might be right. At least seeing the devices on my main network didn't make me feel comfortable, but I have to test if a wifi-guestnetwork device can access e.g. my...

I think you can do this in the app by selecting your first network at the top of the app and from the dropdown select something like "create a new network". I haven't tried it for myself though...

@TP-Link_Deco can you let us know if/when VLAN tagging for the guest network on the ethernet port in Access Point mode will be available for the M4R (M4 v2)?