Powerline suddenly stopped working with ethernet to USB-C adapter
I have an AV600 Wifi powerline kit which contains TL-WPA4220 and TL-PA4010.
My GF was using the powerline LAN using a Ethernet to USB-C adapter(for Macbook) until yesterday. It was working fine until yesterday, now it shows "connected via LAN" but cannot actually connect to internet.
However the same Ethernet to USB-C adapter works when I connect the ethernet cable into the main router at home so the Ethernet to USB-C adapter itself is not the problem.
Additionally the Wi-Fi on the powerline works too. I tried reset but doesn't solve the problem.
Can someone help solve this mystery?