I have my Almond+ connected to a Virgin broadband modem with a contracted speed of 150mb, up until a couple of months ago I could get WiFi download speeds of at least 70 to 80 Mb on 2.4Ghz this has suddenly dropped to 5gbs while Ethernet speeds are around 160mbs nothing has been added to the network and the router hasn't been moved at a bit of a loss as to what is going on