@Phillipj Hi the same thread. https://community.tp-link.com/en/home/forum/topic/195918

@DannyAustin What is the operating system of your computer? Can other devices connect to the host wifi? Try to change the wireless settings of the main router to give it a go, including wireless...

@Phillipj Hello, how did you switch on the LED lights? Have you ever tried to hard reset by holding the reset button/hole for 10s with it powered on and then re-pair them? Good day.

@chrismine What is the current network diagram? How do you connect the laptop and printer? Where did you see the error message? Please show us a screenshot of it. Thanks a lot.

@jawjahgal Hello, for the cable modem, the ISP takes charge of the firmware upgrading; that is why our tech support suggested you to contact them. While considering they refused to offer help, we...

@maui Thanks for your update, glad to hear that you figured it out. If need more help in the future, be free to let us know. Have a good day.