There are many reasons why your internet connection may not be stable. Here are some suggested steps to help resolve this issue:

1. Check for physical obstructions: Ensure that printers, fans, desks, and other large items are not blocking the line-of-sight between the router/modem and your device.
2. Check power levels: Measure the power levels of your connection and make sure they are in optimal range.
3. Scan for Interference: Check if your connection is susceptible to interference from neighboring wireless networks or other devices.
4. Restart the router/modem: This is an easy troubleshooting step that can often be substantive in restoring a quality connection.