Go to advanced-network-internet page, click advanced. Or you can go to Advanced-network-DHCP settings page to give it a shot. It varies due to different products.

@Funkykebab You still failed to pair them after installed the firmware? Try to hard reset it, change another wall socket to plug it. If it is still the same thing, I'm afraid that there is not much...

@Greenz Hello, the TL-PA8010KIT supports dual voltage.

@cas_vis95 Hi, could you please provide us with the screenshot of status page on RE when you lost connection? And what is the model number of main router?

@MrLorenz Thanks for your information. In access point mode, the TL-WA850RE need connect to the main router by wired cable. Try to change another test website, like Speedtest® . Besides, please...

@Rommell16 Did you click on “Rate Tether”? I did a test at our end and it will redirect to the APP store as well. But it is used to "rate" the APP, not testing the speed. Good day.