reset it to factory default settings with power on, then all the settings you have done will be removed from this device.

can you show us a picture about this? have you tried to reset it? do you see tp-link_extender_xx on the Wi-Fi list?

when it stops working, the desktop computer lan is still working? are you able to login its web management page 192.168.1.1? if no, which means that router is not working well. Properly it is a...

from the rate, it seems this modem get the normal speed ISP provided. Try to do the speedtest with cable or download some large videos from internet. During the test, make sure there is only one...

did you reply to them that the recommendation didn't work and you want a solution? they should follow your case.

at this moment no. but we can feedback to tp-link email support team.