Wired vs. Wireless Speed Testing

What It Means

The golden rule of speed testing: if you want to know what your ISP delivers, test wired, if you want to know what your devices actually experience, test wireless. These are two different questions with often dramatically different answers, and confusing them is the single most common cause of incorrect "my ISP is slow" complaints that are actually home network issues. Wired ethernet speed testing removes Wi-Fi from the equation entirely, a laptop plugged directly into the modem or ONT via Cat6 ethernet cable measures exactly the ISP-delivered throughput with no home-network confound. Wireless Wi-Fi speed testing measures the combined ISP + router + Wi-Fi + interference stack, and Wi-Fi typically bottlenecks consumer gigabit and multi-gigabit plans. Real-world Wi-Fi maximums by standard: Wi-Fi 5 (802.11ac) 400 to 800 Mbps close range, 100 to 300 Mbps mid-range, Wi-Fi 6 (802.11ax) 1 to 2 Gbps close range, 400 to 800 Mbps mid-range, Wi-Fi 6E (additional 6 GHz band) similar to Wi-Fi 6 with less interference, Wi-Fi 7 (802.11be) 2 to 5 Gbps close range. If your plan is 300 Mbps and your wireless test shows 250 Mbps, that is normal Wi-Fi overhead, your ISP is delivering. If your plan is 1 Gbps but your wireless test shows 300 Mbps while wired shows 950 Mbps, your router or Wi-Fi environment is the bottleneck, not your ISP. If both wired and wireless show well below plan speed on the Broadband Grade speed test tool, the issue is most likely your ISP, your modem, or a problem on the ISP network worth filing a support ticket.

Frequently Asked Questions