@Gagala There is the official driver available for Linux OS now: https://www.tp-link.com/support/download/tl-wn821n/#Driver, which supports Linux (kernel 2.6.24 ~ <4.9.60). Please verify whether the...

@isb21 Please go to computer management-device manager-network adapter to check the device status of the Archer T1U by double click it. And can it detect other wireless networks? Meanwhile, the...

@Rui.R Hello, please ensure that the powerline leds on both units are on now; for the wireless settings, it is not suggested to clone them via the WPS button, instead, you can use the utility to...

@birdieman For your information, all the TP-Link powerline adpaters are compatible with each other, while you buy the TL-PA9020PKIT as the start kit, 7/8/9 series products are recommended. You can...

@AdamV What is the model number of the AV600? It starts with TL-WPA/TL-PAXXX. To change wireless settings, you can refer to https://www.tp-link.com/support/faq/1611/. May it help and have a nice day.

@tr53 May I know where did you get these links? If possible, you can show us a screenshot of this issue when you met it again. Besides, to access the web management page of the router, you need...