Yea and that. Been a long day. Started with leaving key inside house when in a rush to leave this morning and as snow balled. I won't bore you with the details.
Click Windows button > type "Device Manager" hit enter.
Under network adaptors tab looks for "Dual Band Wifi" (may not be dual band)
Right click and uninstall driver
The driver will re install itself and should sort your issue out.
If not, wifi card/adaptor needs replacing.