I have been having an issue with my Pixel 4a for a few months that has me stumped. I experienced this on stock Android 11 and also since I just upgraded to Android 12.
Intermittently and periodically, with no pattern I can discern (usually at least a few times a day) my active data connection will appear to be on but data will not be recieved. This happens both on 4G and WiFi and on different WiFi networks. Pages won't load in the browser and hang indefinitely. No amount of waiting will resolve it.
Turning data off and then on again fixes the issue. Unfortunately they just made this operation take longer on Android 12. I am not using data saver or battery saver.
Anyone have any ideas what the issue might be or further troubleshooting steps I could try to resolve it? Thanks.