There is a huge gap between advertised broadband speeds and the actual speeds users can achieve, research has shown. A survey by consumer group which found that broadband packages promising speeds of up to 8Mbps (megabits per second) actually achieved far less. Tests of 300 customers’ net connections revealed that the average download speed they were getting was 2.7Mbps. Which has called on regulator Ofcom and Trading Standards to launch a fresh investigation into UK broadband.