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I have a gigabit router (TP-LINK C9) and a on board network card supporting gigabit (Intel 82567lf gigabit), yet when I plug in the network cable, all I see is 10 Mbit connection.
How do I set the networking speed to 100 Mbit or 1 Gbit?
k0pernikus
Posted 2017-01-04T00:39:07.523
Reputation: 1 140
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You should now have 1 Gbps.
k0pernikus
Posted 2017-01-04T00:39:07.523
Reputation: 1 140
I hope I got the English phrasing correct. Also hoping for someone to edit the screenshots into their English counterpart hint – k0pernikus – 2017-01-04T00:56:28.357
@JourneymanGeek That was incredibly fast. Thank you :D – k0pernikus – 2017-01-04T01:07:27.213
Your instructions were detailed, and I was at a windows rig. – Journeyman Geek – 2017-01-04T01:08:23.530
1It's hard to understand what you're suggesting. Are you suggesting that he force 1Gbps full duplex on only one end of the link? If so, how will the other end know to use 1Gbps full duplex if this end isn't negotiating?! – David Schwartz – 2017-01-04T01:53:04.903
@DavidSchwartz I am the OP. This is how I solved my own problem. As in: The connection behaves and acts like a 1 Gbps via file transfers and I can now max out my Internet connection successfully. – k0pernikus – 2017-01-04T01:59:19.587
That's a clue to the problem, but that's not the actual problem. That strongly suggests the problem is that the other end isn't negotiating. Perhaps someone/something locked that side at 1Gbps? – David Schwartz – 2017-01-04T03:37:47.380
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If the cable quality is not up to par, gigabit Ethernet will often fall back to 10 Mbps rather than 100 Mbps. As such, it’s worth checking that your cable is cat 5e or better, the connections are secure, and your cables aren’t damaged.
Johan Gustavsson
Posted 2017-01-04T00:39:07.523
Reputation: 21
1Please don't use answers as comments. Once you have enough reputation, you can add comments to questions and answers. – k0pernikus – 2017-01-04T00:57:54.860
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He does have a point though - http://superuser.com/a/701549/10165 gigabit ethernet falls back to 10mbps in many circumstances.
– Journeyman Geek – 2017-01-04T01:43:56.757
Try changing the cable? – Journeyman Geek – 2017-01-04T00:55:09.183
@JourneymanGeek The cable is fine. – k0pernikus – 2017-01-04T00:55:42.917
It's very, very likely that the cable is the problem. Is it professionally made? Is it gigabit rated? Is it physically intact? – David Schwartz – 2017-01-04T01:52:04.617
@DavidSchwartz When I use it on my Laptop running Ubuntu 16.04, it defaults to 1 Gbps. And yes, the cable is gigabit-rated. It's not the problem. – k0pernikus – 2017-01-04T01:55:36.493
It really is almost certainly the problem. Was it professionally made? How long is it? Does it follow 568A or 568B to ensure the mapping of pins to pairs is correct? Have you tried with another cable? – David Schwartz – 2017-01-04T01:57:18.860