You may need your Xfinity username and password to log in.
Open the My Account app and tap the Internet icon.
For Android devices, tap the menu icon in the upper-left corner of the screen, then tap Internet.
Tap the Wireless Gateway.
Select "Change WiFi Settings."
Enter your new network name and password. When finished, tap "Save."
Your Gateway will take a few minutes to update your settings.
Reconnect your wireless devices to your WiFi network using your new network name and password.
You may need your Xfinity username and password to log in.
The text will turn blue.
Then select "Internet."
Go to "WiFi credentials."
Now select "Edit" to change your WiFi Name or Password.
Enter your new WiFi Name or Password and select "Save."
Reconnect your wireless devices to your WiFi network using your new network name and password.
Learn more about...
How to Edit Your WiFi Network Name and Password with the Xfinity My Account App