phones and Ipad do not work after new modem is installed

[richd]

installed the latest white modem. computer works which is a PC however ios devices do not. it shows connected to modem with strong signal but nothing connects. did all reccomended solutions. phone tech could not resolve.

[BruceW]

Does https://forums.xfinity.com/t5/Your-Home-Network/Wifi-not-showing-up/m-p/3351901#M328043 help?

[richd]

Bruce,

thanks! problem resolved by renaming gateway and changing password. You would have thought that the Comcast tech support would know that. They spent an hour on diagnosis only to recommend a visit by a technician. Very sad.