Hello! I understand that you are seeking a way to connect to your home Wi-Fi network that appears to have changed its SSID and password without providing you with the updated information. It seems that your phone does not have the WPS feature in its settings, and you are looking for an app that can be installed on your phone to enable the WPS function for connecting to the Wi-Fi by pressing the WPS button on the router.
Firstly, I would like to clarify that enabling WPS on your router might not be the safest option for connecting to your Wi-Fi network as WPS has known security vulnerabilities. It is recommended to use the traditional methods of entering the Wi-Fi password manually for a more secure connection.
However, if you still wish to proceed with enabling WPS on your phone, you can try searching for third-party apps on the Google Play Store that claim to enable WPS functionality on devices that do not have it natively. One such app is "WPS WPA Connect Dumpper," but please be cautious when using such apps and ensure they are from trusted sources to avoid any security risks.
Additionally, if your router supports the Push Button Configuration (PBC) method for WPS, you can check if there is a physical WPS button on your router that you can press to connect your device without entering a password.
I hope this information helps you in finding a solution to connect to your Wi-Fi network. If you have any more questions or need further assistance, feel free to ask!