While WiFi is super convenient, this convenience does have a trade-off. Wireless is not as reliable as a cabled connection to your modem.
Wireless speeds are impacted by many factors including:
- Distance between your device and the modem
- Appliances (Cordless handset w/ base station, fridges, Wireless speakers, some LCD and Plasma displays emit harmonic interference, microwaves, cameras, baby monitors, neighbours' wireless devices etc.)
Some appliances may not specify that they operate in the 2.4 GHz or 5 GHz band and will instead be labelled as "Dual Band", "Wi-Fi", or "Wireless" devices.