Hi @Freddie27117 

Thanks for posting in our business forum.

What color do you see on the switch PC to SW? Orange or green?

If orange, that means the cable is not good enough to negotiate up to 1 Gig. So swap it with another one.

You can test a cable by connecting both connectors to the switch.

For this situation, if the switch can negotiate up to 1 Gig, it is not the hardware issue, you can iperf with two Gig Ethernet supported PC to verify that.

Usually, recommend you double-check the cable.

Hi @Freddie27117 

Thanks for posting in our business forum.

Freddie27117 wrote

  @Clive_A 

 

The light on the switch port coming from the router is orange (this is the input for the switch, so that explains why all other connections are limited to 100mb). Everything else including switch to pc is green. That being said I don't believe it's the cable. When I remove the router to switch cable (the one coming up as orange), remove my pc cable, and connect them with an RJ45 extender I'm back up to 1000mbps on my PC. All the cables are the same in this scenario, the only difference here is that I am bypassing the switch.

I have done some more testing and I think you may be on to something with the negotiation process. When I use the switch my router states the connection is 100baseTX (full-duplex), however when I bypass the switch it jumps up to 1000baseT (again full-duplex). The "actual" speed in the switch interface says port 1 (which again is the input and orange light) is 100MF. I've tried manually setting it to 1000MF but I immediately get a link down under "actual" and the network crashes until I set it back to automatic which reverts it to 100MF.

I can try to manually force the router to use a 1000baseTX connection with the switch. If that doesn't work maybe I can go straight from my modem to the switch and then into my PC to try to rule out the router? Other than that do you have any suggestions?

If the switch detects it 100Mbps, use a different cable. Or test this cable by the method I told you earlier.

Don't try to force it to 1000Mbps if the cable simply fails the verification on the switch. It does not work at all if the switch thinks the cable is not good enough or capable. It won't make a difference.

In this situation, test the cable and find one that can show a green light.