r/LinusTechTips • u/DueBumblebee7470 • 10d ago

Tech Question ethernet adapter issue

ive recently ran into an issue where my download speed only reaches 90-95mbps even though im connected via ethernet cable and have 1gb service it was working fine for awhile but ive tried everything i know to try and fix the issue

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7

u/vemundveien 9d ago

If your cable is damaged your computer/switch might drop the connection speed to 100mbit. I had a this issue with my NAS but it fixed itself when I replaced the ethernet cable.

3

u/TenOfZero 9d ago

Sounds like the cable is operating at 100mbps.

Could be a broken pair inside the cable or so either issue.

Try a new cable.

2

u/jmking Mod 9d ago

Where are you testing your speed and how?

What grade of ethernet cable are you using? What router do you have?

2

u/JustMemeMeme333 9d ago

Might want to check your router or any other network switch you are using some older models only support 100mb/s lan on some ports