any upgrade, please share here.

When you come to the page choosing a router's wifi, click on I'd like to use a different network on the bottom. Then go to the bottom, choose Manually Setup My Wi-Fi. There you can type in the ssid...

What you need to do is to login to kasa with your cloud account. Press on the plug's name, then go to device settings on the top right, enable remote control.

Yes, finish the verification process is the first step. Enable the remote control is the second step. You can follow the first part of the instruction below to do that....

http://www.tp-link.com/en/faq-1970.html Cable modem not affected , no nee to update. For the firmware info, can check on the interface of the modem router. Firmware need to push by ISP side

do you have internet access when the 9020P has red light on it? I think you can also use the utility to add into the network : http://www.tp-link.com/en/faq-1059.html