FIX: Wireless network connection doesn’t have a valid ip configuration
The next solution is bit more dramatic but does work in some cases, we will remove your device from your system and let Windows install it again.
1. Open Start, type Device Manager and choose Device Manager.
2. Locate Network adapters and expand the same.
3. Select the wireless connection, right-click and select Uninstall.
4. Restart the computer, if prompted.
We hope your problem was solved following this guide.