Using the hub 3 as a modem connected to a deco p9, using a cat 6 ethernet while being the only one connected I'm seeing 200 - 240 Mbps on speedtest.net and googles speed test. The downstream on the hub 3 concerns me a little. Here is the hub's status:
No issues in the area according to the service checker and when I run a test on the app it says they noticed a problem but it never gets resolved. This is a recent installation and apart from a great first day and one other day with brilliant speeds we've been having subpar speeds.
Can you set up a Broadband Quality Monitor (BQM) at thinkbroadband.com - this will give you an insight into what is happening with the signal at the other side of the Hub, it will take a few hours to get any kind of trend showing although you should post the link straight away.
Post a link to your BQM on here.
Instructions for posting BQM Link
Under your BQM graph are two links in red.
Click the lower link (Share Live Graph) then click generate.
Copy the text in the Direct Link box, beware, there may be more text than you can see.
On here click the Link icon (2 links chain to the left of the camera icon)
In the URL box paste the link you copied and in the ‘text to display’ box write My BQM then click OK - you can post the link straight away.