If you have an older laptop and the Wi-Fi connectivity suddenly stops working, one quick way to fix this problems is to power off the laptop completely and unplug the power cable. Remove the battery, wait 1-5 minutes, reconnect the battery, and power on your Windows 10 device.
Then test if the wireless connectivity is working. If it’s not working or you can remove the battery, then use this Windows 10 video tutorial on how to reset the network adapter:
Just keep in mind that there are a lot of variables when troubleshooting network connecting. It could be the signal, router, extender, broken adapter, drivers, conflicting software, Windows 10, etc.