I spent some more time setting up a new internet connection at my home. I have a 1 Gbps connection from my internet service provider.
After reaching speeds of up to 500 Mbps on Wi‑Fi, I wanted to set up a wired network to make the most of the 1 Gbps connection.
So yesterday I bought a TP‑Link TL‑SG105 switch and a BONELK Long‑Life USB‑C to Gigabit Ethernet adapter to build a basic Ethernet network and connect it to my Mac.
When I connected everything, fast.com showed I was only getting around 70–80 Mbps, which was frustrating since I was already getting about 500 Mbps on Wi‑Fi. After the initial frustration faded, I decided to start troubleshooting.
Today I checked the connections and cables and found the culprit: a faulty Cat‑5 Ethernet cable running from the wall port to my Mac.
After replacing that faulty Cat‑5e cable in the last segment, speeds jumped to 900+ Mbps (around 930–980 Mbps). Problem solved.

Here is my setup:

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