Sudden drop in SamKnows RealSpeed to router
https://samknows.com/realspeed/ tests to my Hub 5x usually show download speeds of 1140-1142 Mbps (I am on the Gig1 Full Fibre package). However, since yesterday evening the tests to the hub struggle to achieve more than 250-300 Mbps. I have rebooted the hub a couple of times, including power off/on, but the realspeed downloads to the hub remain slow. I have spoken to Virginmedia support who could not notice anything on their end. Fast.com speeds have dropped from the usual >1Gbps to about 500 Mbps, and https://www.thinkbroadband.com/speedtest is pitiful, 35 Mbps single thread and 230 Mbps multithreaded. Any suggestions on what might be wrong and how to proceed (and convince Virginmedia to have a proper look at this) would be much appreciated.