@mathewww Hi, Can you please do the following test? Carry the Archer C80 to the place where your modem is, connect the two using the short Ethernet cable that came in the box of the C80 and then...

@Tileino80 Hi, By "I cannot connect 5ghz" do you mean if you select your 5 GHz wireless network, then Windows 11 tries for a while and after maybe around 10 seconds or so it says "cannot connect to...

@MrBeanAdapter Hi, You can download it from TP-Link's "Worldwide" site. https://www.tp-link.com/en/support/download/tx201/ However, if it was me I would instead download the newest version of the...

@HYANG Oh, I understand. You have many different wireless devices and none of them can ping any other device. If the router's AP isolation has somehow become permanentely active despite being...

@HYANG Hi, What type of devices are they? In some cases client devices may have such strong firewall rules that they don't even allow ping from another device in the same LAN.

@bwfcphil You didn't mention the model number of the Powerline adapter, but usually there is a small recessed RESET button somewhere near the LAN port of the Powerline adapter. While the adapter is...