@jra11500 Hi, thank you very much for the feedback. You mentioned "Testing shows that when using an additional router in AP mode, the IoT devices are not isolated even though they are listed in the...

@ricotuf Hi, I've sent you a private message, please check if it works.

@WIFI_NEWBIE01 Hi， AV600 is not the model no. actually, could you please check the model no. on the device label? Besides, what is the LED status on the two powerline units? is there any Wi-Fi LED?

@Bann0ckburn Hi, is the model number of your AV600 TL-WPA4220 KIT? Please double-check the LED status on the smaller adapter to see if it is Powerline or Ethernet LED blinking. Please also try moving...

@Eng-H Thank you very much for the detailed information. To assist you efficiently, I've forwarded your case to the TP-Link support engineers, who will contact you with your registered email address...

@Herlisa Hi, thank you for posting on TP-Link Community. 1. Please connect a computer directly to your modem to see if internet works fine. 2. What is the WAN connection type you've configured on the...