Hi,
Do you have other wireless device that can connect to your wireless network? (Cellphone or other laptop) Here are some troubleshooting steps that may help.
- First is to uninstall/reinstall the Wifi Adapter.
- Go to Device Manager and uninstall the wifi adapter.
- Reboot the laptop once the driver has been uninstalled and it should reinstall the driver automatically.
- After the reboot do test it again and see if you'll be able to connect normally.
- If the same problem will persist do also a power cycle with the modem and router.
- Turn off both the modem and router for a second, turn them back on then see if you'll be able to connect with your laptop.
- Another test would be to check other wireless device if they can connect with no problem while your laptop is not connected.
- If other devices will work just fine I would also suggest reinstalling Windows with your laptop.
- Here's how: http
/www.dell.com/support/article/us/en/19/SLN291879/EN