My new iphone 8plus will not connect to my home wifi.
do you see other wifi SSIDs? do you have the wifi radio on the phone turned on? You may have to wait a minute or two to have all the SSIDs populate the screen. Do you own your own wireless router or use Comcast's?
anntwin, how many devices are currently connected to your home wiFi?
Can you see the network/modem on your iPhone?