Overview
- Reports this week show more households experiencing Wi‑Fi slowdowns or router shutdowns as temperatures climb into the high 30s Celsius and more people stay indoors.
- Two linked causes explain the problem: home hubs can thermally throttle or switch off when exposed to high ambient heat, and simultaneous indoor demand can overload local ISP networks, reducing speeds.
- Broadband kit is typically tested to around 40°C but real‑world risks rise if routers sit in direct sun, cramped cupboards, on carpets, or are many years old and use less efficient chipsets.
- Experts advise practical fixes such as moving routers to cool, ventilated, central spots, raising them off soft surfaces, using extenders for outside coverage, and performing occasional reboots rather than routinely powering devices off.
- The outages can affect more than streaming and browsing: losing a hub can cut digital voice handsets and connected alarms, so people should check placements, consider provider upgrades for aging kit, and monitor ISP status during heat spells.