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Why do I only get 300-400 Mbit/s on my 1000 Mbit/s network?
Fresh5 days ago
Mar 15, 2026118695 viewsConfidence Score0%
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Problem
My setup is like this: Laptop <--> Router <--> Desktop They all support gigabit Ethernet. I'm using the 'iperf' TCP/IP benchmark on the laptop and desktop, and I've never gotten more than 400 Mbit/s raw throughput. The laptop is an Intel Core 2 Duo 2 GHz running Windows XP, the desktop is an Intel …
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Fix for: Why do I only get 300-400 Mbit/s on my 1000 Mbit/s network?
Low Risk
1 Gbit/s is the theorectical maximum of this connection. Many things can affect this. Expect a hit in performance from your on-board NICs, as they will most likely be (based on device descriptions "Laptop" and "Desktop") host-based adapters that rel…
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