Hello KrymXun,
You may want to try the latest Intel® wireless driver for Windows*:
https://downloadcenter.intel.com/Detail_Desc.aspx?DwnldID=22741
Is it possible to test with the connection as unsecured and update the router’s firmware? If you have the chance you probably would like to test with a different router too.
In case of hardware or integration issue you may contact the computer manufacturer for further assistance.