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I am trying to connect Chromecast but cannot connect it to my Wi Fi. I have tried resetting my modem but it still does not work. It says there could be a problem with my settings.
I have looked up a Troubleshooting guide for your Chromecast. I suggest you start here.
There are no specific Chomecast settings within the modem that need to be made for a Wifi Connection.
I hope this helps.