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Cat5e cable and 500mbps

NickWilliams
Visitor

‎25-04-2025 11:43 AM

I have 500mbps speed and a BT smart hub 2. I run a Cat5e cable 50m to an outhouse but only get 90mbps there. Wi-Fi in the house is approx 500. After contacting BT technical help, they told me that Cat5e will not support 500mbps and will only give 100. I have to have Cat6 cable. This advice is contrary to all the info on the web. Cat5e is meant to support up to one gbps up to 100m.
Does anyone have a view please?

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3 REPLIES 3
Northerner
EE Community Star
EE Community Star

‎25-04-2025 12:11 PM

Hi @NickWilliams 

Cat5e supports up to 1GB. 

Check your router ethernet settings are not limited to 100 via the port. 

Read here:

https://community.bt.com/t5/Home-setup-Wi-Fi-network/Smart-Hub-2-only-giving-100-mbps-on-ethernet/td...

Thanks 

 

 



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JimM11
Brilliant Contributor
Brilliant Contributor

‎25-04-2025 12:44 PM

@NickWilliams As @Northerner has pointed out, also check your cable, one bad connection and you are down to 100mb/s on the cable, that's all it takes it needs the full 8 cable cores to get 1Gb/s speed and wired correctly off course.

Mustrum
EE Community Star
EE Community Star

‎25-04-2025 02:04 PM

@NickWilliams   what device do you have in your outhouse? Is that capable of 1Gb, or if a switch are any of the devices limited to 10Mbps?

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