Thanks for posting and a big welcome to the community
Really sorry to hear that your connection is under performing since your upgrade, I know this is disappointing. Looking at your Hub I don't see anything obviously out of place. I did notice you're currently connected in Modem Mode, when you test your speeds are you using a 3rd party router or do you test directly from your Hub? Do you notice if the speed changes at certain times of the day / night?
Please get back to us so we can continue to investigate.
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Thanks for getting back I wonder what is going on. At the moment we have a little issue where we are unable to view usage data for your cable so we are a bit in the dark as to whether area usage plays a factor, I have asked our data team to take a look P007835913, once fixed it may take us a few weeks to gather data and assess the situation, we will keep an eye on it and update you.
However that said one would think if it was area traffic related that you would get better speeds at non peak times.
A couple of things spring to mind, when you connect a device directly to the hub please check that the LED adjacent to the Ethernet lead is lit green and not orange (green = 1Gbps and orange =100/10Mbps)
Also if you are not doing it already please use www.speedtest.net leaving the default server to measure the speed as this will normally remain on our network.