New Laptop need to be very close to router to pick up any signal unlike several earlier laptops and other devices. Had same problem trying to connect with different router at another house where all other devices were getting strong signal. Laptop has Windows 8.1 and it's Atheros wifi driver was last modified on 29.8.2013. Packard Bell web site showed 2 possible Wireless LAN drivers, one by Atheros and one by Broadcom. Should I download neither, or one of, or both?