How to Fix Network Connection Issues in Windows 10
you're experiencing issues visiting websites that normally work just fine, there are quite a few methods to try to get your PC back online.
The first thing to check with any internet outage is to reboot your router/modem to make sure they aren't the issue. A simple reboot could fix the problem within a minute. If you are using Ethernet make sure your wire is securely in the back of your computer and router/modem. You can also try another port on the back of your router.
If you are getting an invalid password message when trying to connect wirelessly, remember that wireless passwords are case sensitive. You can typically find default passwords and SSIDs (network names) on the router as well. If the password is still incorrect and you are not sure what it is, you would want to contact your Internet Service Provider for assistance.
If those quick tips don't help, there are a variety of methods to try to get the PC back online;
- How to Network Reset through Windows Settings