Firstly 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 Hub, it will take a few hours to get any kind of trend showing.
Post a link to your BQM on here.
then
Type 192.168.0.1 into your browser URL bar and press enter. When the page appears DO NOT LOG IN but click ‘Check Router Status’. Copy and paste the contents of each tab onto here, a Guru will be along soon to decipher the info.
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BT Smart Hub 2 with 70Mbs Download,18Mbs Upload, 9.17ms Latency & 0.35ms Jitter.