If you are using a Comcast supplied gateway device, and if it hasn't been changed from its default value, are you using the password from the label on the bottom, back, or the side. It may be called the "Password" or the "Network Key" on that label. Using the proper case (upper or lower) ?
Hi, redsteve - Are you trying to connect to 2.4 GHz or 5 GHz network? I see there are several devices that are currently connected.