Question Why are my speeds capped at 100Mbps when going through wired ethernet in house?

[sam2k51]

Hello,

I've recently moved into a new house (built in 2018) which has built in ethernet ports throughout the house. They were annoying not labelled but I've now figured out what port near my router relates to what port in other rooms.

I've recently tried plugging my game console in through the port in the lounge and then from the related port by my router and then into the router. I should be getting speeds of around 500Mbps (and I do get this when I test via WiFi) but the console only gets 100.

I've tested quite a few things, like plugging directly into the router and my speeds go up to 500, tested both cables also checked the ports themselves and they are both wired up as T568B and also checked all of the other ports in the house and they are only getting 100Mbps as well and I can't figure out why I'm getting a low speed.

Does anyone have any ideas what's causing it to be slow? Also please bear with me I'm new to a lot of this and I'm still learning!

 

[kanewolf]

Hello,

I've recently moved into a new house (built in 2018) which has built in ethernet ports throughout the house. They were annoying not labelled but I've now figured out what port near my router relates to what port in other rooms.

I've recently tried plugging my game console in through the port in the lounge and then from the related port by my router and then into the router. I should be getting speeds of around 500Mbps (and I do get this when I test via WiFi) but the console only gets 100.

I've tested quite a few things, like plugging directly into the router and my speeds go up to 500, tested both cables also checked the ports themselves and they are both wired up as T568B and also checked all of the other ports in the house and they are only getting 100Mbps as well and I can't figure out why I'm getting a low speed.

Does anyone have any ideas what's causing it to be slow? Also please bear with me I'm new to a lot of this and I'm still learning!

There are a few possible reasons. But bad terminations on the in-wall wiring is #1. Then the obvious error of using an old 100Mbit ethernet switch rather than a gigabit. Third possibility is you have a laptop which only has 100Mbit hardware. Fourth you have damage to one of the eight wires in your ethernet port.

 

[USAFRet]

Capped at ~100mbps is almost certainly cable related.

 

[chillhouse1]

try uncap ethernet speed, open device manager, then properties-advanced of network adapter, then select Speed and Duplex from the Property column, and expand the Value dropdown