@yeng Voucher authentication has to keep running the controller, otherwise it will no longer provide authentication. See this article: https://www.tp-link.com/en/support/faq/1041/

@Lardo5150 I think they removed this feature as it is not important and accurate.

@chiptransisto If you connect the modem to WAN2, can you get any WAN IP address? If yes, try setting DNS as 8.8.8.8. If no, try MAC clone. BTW, when you selected ports as WAN ports, did you click...

@WesRehn Hey WesRehn, If the signal of the root AP is not so good, you can adjust the Tx power to high and the angle of antennas. Use Wi-Fi analysis tool to select a better channel is also a good...

@gargantua Oh sorry, as my devices are all connected, so I didn't realize this page. But I think you can try to log in to the switch's web interface via the password you set or the default password....

@gargantua If the device can be detected by the controller, you can reset it from the controller. Go to Devices-->click the switch-->Config--->Manage device--->Forget: