@Shulaf Hi, This post https://community.tp-link.com/en/home/forum/topic/593722?replyId=1322178 from Monday (Feb 19) contains the latest statement from TP-Link about that topic.

@Marty1885 Hi, Does you computer's motherboard have a second F_USB connector you could try? In case it does, then plug the cable of the TX20E in that other F_USB socket and check if it makes any...

@Vcator Hi, According to the screenshot you posted both wireless networks are "on" and thus should be visible. Are you unable to see any of the two wireless networks "TP-Link_8BE3" and...

@gehext Hi, Do you remember what the version number of the firmware was before the update? According to TP-Link's website two of the changes that were made in recent firmware versions are the...

@John_OS If neither your PC nor your smartphone can find a Wi-Fi network named "TP-Link_Extender", then the RE815XE you have must be defective. Just to be sure you might want to reset the RE815XE a...

@John_OS So, when you go through the Quick Setup the RE815XE scans for nearby wireless networks, in the ensuing list that is shown you select the wireless network of your parent Wi-Fi modem, enter...