Wifi active but not connectable

@XfinityJamesC​  Yes the old devices have been disconnecting and reconnecting constantly but now cant connect at all and the wifi isnt showing up on the connect list at all now. Ethernet is working just fine and it says nothing wrong but after resetting all devices and hard resetting the modem/messing with cords it still isnt popping up on the list. Nothing can be connected wirelessly as of now

@user_otl1u6 Thank you for providing me with the steps that you have taken with the modem. Since you did a factory reset on the modem, most likely it reset it back to the default settings, including the Wi-Fi name and password. To view and change the Wi-Fi name and password, you can do so from the Xfinity app. Once you open the Xfinity app, click on the Wi-Fi tab, then click on Wi-Fi details. From there, you will click edit Wi-Fi settings at the bottom. I have also provided an article with the steps here: View and change your Wi-Fi network name and password  Let me know if you have any questions. 

@XfinityMarshante​ I changed everything back to normal but the Wifi is still not showing up! it says there is a strong internet connection but Im unable still to connect wirelessly on phones, tablets ect. 

@user_otl1u6 Thank you for that information. In the Xfinity app, under Edit Wi-Fi settings at the bottom, do you see broadcast Wi-Fi name? Is it turned on? 

@XfinityMarshante​  Yes it does