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Engineer Debugs 10GbE Network Bottlenecked to 300Mbps

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A networking enthusiast documented their troubleshooting process after a newly set up 10 Gigabit Ethernet network delivered only around 300 Mbps instead of its rated speed. The investigation, shared on Scott Hanselman's blog, walked through the diagnostic steps taken to identify the root cause of the severe performance gap. Such issues can stem from mismatched cables, faulty transceivers, switch misconfigurations, or driver problems. The writeup serves as a practical guide for others encountering similar unexpected slowdowns on high-speed home or small office networks.

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Engineer Debugs 10GbE Network Bottlenecked to 300Mbps · ShortSingh