What is causing WiFi dead spots in your home – and how to fix it Subscribe We tend to take WiFi for granted at times, expecting it to miraculously work 24/7 and in every room of our homes – even on that remote patio that doesn’t quite reach the wireless router’s signal. As wireless connectivity runs on radio waves, obstructions and interferences come with the territory, resulting in WiFi dead spots where wireless signals can’t penetrate, says Matthew Campbell, head of SME and FTTH at ICT and high- speed data network provider Seacom. This means that your wireless devices won’t pick up WiFi signals in these zones, and you’ll have to move to gain Internet access again – a particularly annoying ordeal if you’ve just settled in a comfy, quiet spot away from your kids or colleagues.