Cat5e cable and 500mbps

[NickWilliams]

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?

[Profile closed]

Clean the plugs.  As someone pointed out, it only takes one poor connection.  Once the auto-negotiation has decided it's only capable of 100Mb/s that's what it will stay on until it's reset. 

(100Mb/s was the limit for the old cat 5 standard, by the way.  5e was "enhanced", (that's the e), to get it up to 1000Mb/s).

[Ewan15]

@NickWilliams I would invest in a LAN cable tester from S***fix, you can get one that will do the job quite cheaply. Then you can confirm your cable to the outhouse is good (All eight LEDs should light up in sequence as each of the eight strands is tested if your cable is good)

[NickWilliams]

thanks for this. I hadn’t heard that before.

[NickWilliams]

Thanks. V much