Welcome to another edition of On Call, The Register's reader-contributed column that celebrates the fine art of tech support. This week, meet a reader we'll Regomize as "Eddy," the one-person IT department for an assisted living company. "I have had quite a bit of trouble creating a stable Wi-Fi network," he admitted to On Call. "The space is crowded with multiple networks because seemingly every other resident has their own router blasting Wi-Fi throughout the building," he explained. After ext