@pjkotian Hi, Definitely v6.

@esteen Have you so far only tested this with one single open Wi-Fi network, which happens to be one of a hotel? I wonder if they may have blacklisted the MAC address of your router. Can you test...

@S21ACP Hi, You may try the following. - Disconnect all client devices from the Archer C6's network (and ensure it can't automatically reconnect) - Reboot the Archer C6 - Try again to set up the port...

@esteen I suggest you reset the TL-WR902AC to factory defaults and then try again. Below is what the system log of my TL-WR902AC shown when it connects to an open Wi-Fi network.

@esteen Hi, Do you see any error message? What information does the "WAN" section of the Status menu show? The little switch on the TL-WR902AC is in the "Share Hotspot" position, right?

@Dave334 Hi, Have a look at the official user guide and "how to" videos. https://www.tp-link.com/en/support/download/re650/