Hii my name is Luna Falon i am from the technical team if you are facing a problem then you can visit our site. When facing issues with HP ePrint not working, there are several troubleshooting steps to follow. Firstly, ensure your printer and mobile device are connected to the same network. Restart both the printer and your mobile device to refresh connections. Check for any firmware updates for your printer that could improve compatibility. Verify that your printer has an active internet connection and the ePrint feature is enabled. If the problem persists, remove and re-add your printer from the ePrint app or website.