Start with the simple checks. Change one thing at a time so you can tell which step helped.
Power settings, outdated drivers, router changes and weak coverage can all cause a Windows Wi-Fi connection to drop. First, note what changed recently and whether the same issue affects another device. This helps separate a device-specific fault from a wider network or service issue.
Troubleshooting steps
Check the basics
Restart the PC and router, then check whether other devices disconnect at the same time. After each change, repeat the action that originally failed and give the device a moment to reconnect or refresh.
Review the settings
Use Windows network settings to forget the network and reconnect with the correct password. After each change, repeat the action that originally failed and give the device a moment to reconnect or refresh.
Test one change
Install Windows updates and check the PC maker’s support page for a current wireless driver. After each change, repeat the action that originally failed and give the device a moment to reconnect or refresh.
Confirm the result
Temporarily test near the router and note whether the connection stays stable. After each change, repeat the action that originally failed and give the device a moment to reconnect or refresh.
Helpful note
Avoid downloading drivers from unofficial driver-updater sites; use Windows Update or the computer maker.
When to get more help
If these checks do not resolve the issue, contact the relevant device maker, internet provider or app support team. Include the exact model, software version, any error message, what you have already tried and when the problem began. Avoid sharing passwords, verification codes or private account details in a public forum.
For equipment that is hot, damaged, wet or making unusual electrical sounds, stop using it and seek qualified support. Do not open power supplies, batteries or mains-powered equipment.
Settings and menu names vary by model and software version. Use the manufacturer's current instructions for device-specific steps, and back up important files before making changes that could remove data.