Sorry, the Channel selection to 11 didn't work. By the way I have dual band router. All other devices are connecting but not Chroimecast Ultra. My Earlier router was tp-link Archer C20, it used to...

Thanks Kevin, Will try the changes mentioned. All other devices (Laptops and Phones) work fine on the same Router using WiFi. Only the Chromecast is an issue since few days (used to work for a month,...

Since last couple of days, my Chromecast is unable to connect to my WiFi. I tried factory reset on Chromecast multiple times without any luck. I tried with my Phone hotspot and it works. I am unable...