GoKawiilGuide explains how to check Ethernet cable and connection speed on Windows and Mac
Windows 11 users can check negotiated Ethernet speed under Settings > Network & internet > Ethernet, or via the ncpa.cpl shortcut on Windows 10 and 11 to view adapter status. Mac users can find the same information under System Settings > Network > Ethernet > Details > Hardware, with the configuration kept on Automatic to avoid connection problems.
GoKawiil's interpretation of the reporting above, not reported fact.
The reported link speed only shows the negotiated rate between a computer and its router or switch, not actual internet speed or a cable's maximum capability, so it cannot confirm whether a cable is faulty. Checking cable markings like Cat5e or Cat6 gives more insight into potential capacity, though even that is not an absolute limit, since older cables may perform well over short distances but falter over longer runs.
- Windows users can check Ethernet speed via Settings or the ncpa.cpl shortcut; Mac users via System Settings > Network.
- Link speed reflects the device-to-router connection, not real internet speed or cable health.
- Cable category labels like Cat5e or Cat6 hint at capacity but aren't a strict speed ceiling, especially over long cable runs.
Cat6 Ethernet Cable (Jadaol) — If you've checked your link speed and want to ensure you're actually getting gigabit performance, upgrading to a solid Cat6 cable is a smart move. It supports gigabit Ethernet speeds reliably and is a simple, affordable upgrade from older Cat5 cabling that might be bottlenecking your connection.
See Cat6 Ethernet Cable (Jadaol) on Amazon → Affiliate link — we may earn a commission on purchases, at no extra cost to you. Product picked by AI based on this article; it is not a tested recommendation.Source: engadget.com — Husain Parvez, 2026-10-17
Published there as: “How to check your Ethernet cable's speed”
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