Difference between 1.0 Gbps & Auto Negotiation [closed]

I am downloading a huge file and was wondering on how to boost my Ethernet speed. I found this option called “Speed & Duplex” And there were a few options. Two of them were

1) 1.0 Gbps Full Duplex

2) Auto Negotiation (Which was on default)

I switched to 1.0 Gbps Full Duplex and used Task Manager to check my speed.

No difference…

So what does it do? And why do I see no difference?


In general, you always want to keep auto-negotiation turned on, unless the equipment on the other end is specifically set to a fixed speed.

If you turn auto-negotiation off on one end, and the other end has auto-negotiation turned on, the link may fall back to a slower speed, even perhaps as slow as 10 Mbit/s half duplex!

This is because the other side won’t see any auto-negotiation, and therefore will fall back to a safe speed.

Even worse, using manual setup you can set up different settings on each end, leading to a link which will operate poorly or not at all.

The other end in this context will be the Ethernet switch you’re hooked up to.

Short answer: If in doubt, turn auto-negotiation on, and don’t manually try to force anything. You’ll just create more problems for yourself if you do.

Source : Link , Question Author : Guy named Jon , Answer Author : Per von Zweigbergk

Leave a Comment