@Carl You are a life saver! THANK YOU! The router works fine now after resetting the modem (restarting without the coax cable.) I'm surpised Tp-Link tech support could not figure this out. They had...

I'm experiencing a weird problem with my Tp-Link Touch P5 router that even Tp-link support could not resolve, so I hope someone here can enlighten me. When the router is connected to the modem (via...