Decoding Your ISP Speeds
The Megabit vs. Megabyte Trap
ISPs sell packages measured in Mbps (Megabits per second), not MBps (Megabytes per second). There are 8 bits in a byte. Therefore, a "400 Mbps" connection actually downloads data at a maximum of 50 Megabytes per second. Understanding this basic conversion stops you from thinking your network is failing when a 1GB file takes 20 seconds instead of two.
The Bottleneck Effect
Your internet is only as fast as the weakest link in the chain. You could pay for a gigabit (1000 Mbps) fiber connection, but if your router is five years old, you will never see those speeds wirelessly.
| Standard Name | Old Tech Name | Max Theoretical Speed | Best Used For |
|---|---|---|---|
| Wi-Fi 4 | 802.11n | 600 Mbps | Legacy devices, basic browsing |
| Wi-Fi 5 | 802.11ac | 3.5 Gbps | HD streaming, general home use |
| Wi-Fi 6 / 6E | 802.11ax | 9.6 Gbps | 4K streaming, dense smart homes |
Upgrading to a Wi-Fi 6 router is the recommended step if your home has more than 15 connected devices (including smart TVs, phones, smart plugs, and speakers), as Wi-Fi 6 is specifically designed to handle traffic congestion better than its predecessors.
Dual-Band vs. Tri-Band
Modern routers emit multiple signals simultaneously. A dual-band router emits a 2.4GHz signal and a 5GHz signal.
- 2.4 GHz: Slower speeds, but passes through walls easily and reaches far. Best for smart home IoT devices and distant cameras.
- 5 GHz: Incredibly fast, but blocked easily by walls. Best for gaming consoles, TVs, and laptops in the same room.
A Tri-Band router adds a second 5GHz band (or a 6GHz band in newer models), acting like a dedicated carpool lane on the highway to keep high-bandwidth devices from slowing down the rest of the house.
Next: Mesh Networks