Here are steps you can take to resolve your printer connection issue:

1. Check your mobile device’s network settings to ensure it is connected to the internet and that your printer is enabled for network printing.
2. Confirm that your router is working correctly and that you have the most up-to-date firmware installed.
3. Ensure the right network information is entered. Check that the Network name and password are correct and that the security type, if applicable, is selected correctly during printer setup.
4. Your mobile hotspot may be blocking the printer from connecting. Disable the security features on your mobile hotspot to fix the problem.