My name is***** am sorry to hear that you are having this issue.
I will be glad to assist you with this.
Have you tried reinstalling the wireless adapter via device manager on your Laptop?
okay, try this please.
Right click on the start menu icon on the laptop, then click on device manager, then click on the arrow beside network adapters in order to see the adapters, then right click on the wireless adapter and choose unistall, then right click on the ethernet adapter and choose uninstall, then reboot the computer.
then while the computer is rebooting>unplug the power to your router for 1 minute, then reconnect the power. Wait for both to reboot fully then try the wireless connection again.
did you try uninstalling both adapters and reboot the router?
the Realtek is the ethernet adapter. remove it then reboot and check.
if that fails right click on the wireless adapter and choose properties, then click on advanced, from there you can check the preferred bad and other settings related to the wifi.
Band width should be auto, preferred band should be no preference.
Okay, lets try a system restore next.
Search for system restore in the Windows 10 Search box, open the System Properties dialog box, click the System Protection tab and then click the System Restore… button. Follow the on-screen instructions and select the Restore Point from a time the wifi was working normally, when prompted.
Okay, the next option is a reset.
Resetting lets you choose whether to keep your files or remove them, and then reinstalls Windows. To get started, go to Settings > Update & security > Reset this PC > Get started and choose option. Keep my files
Did the reset work?
Sounds good, let me know if you need anything.