@AndroidOS Hi, Your device hardware version is V5.30, right? Please update to the latest firmware TL-MR6400(EU)_V5.30_1.5.0 Build 221121 first: Firmware Download for TL-MR6400 V5.30 If the problem...

@herrZed The issue just happened once up to now with the 1.7.0 beta firmware, right? You could restart it to get the internet working again and monitor for a longer time if the issue appears...

metrominsk wrote @Sunshine I installed firmware 1.7.0 0.9.1 v0001.0 Build 231122 Rel.61263n_Beta and my problem disappeared. The MR500(EU)_V1_1.6.0 Build 231016 firmware is now available on the...

@RobertYu Hi, are you able to ping each other between the two computers? If not, please turn off the windows firewall for a try.

@Avocadosed Hi, it sounds like you are trying to update the driver of your wireless adapter, instead of the modem. You could try contacting the manufacturer of the wireless adapter. For TP-Link...

@YCLV Hi, WiFi lights off means the WiFi function is disabled on the powerline extender, you could press and hold the Wi-Fi button for at least 5 seconds to turn the wireless function on or off.