[bbc] Broadband speeds in the UK now average 6.8Mbps (megabits per second) but there is still a huge gap between advertised and actual speeds, according to Ofcom.
Almost half of broadband users are now on packages with advertised speeds above 10Mbps but few achieve this.
Ofcom's biannual report into the state of the broadband market urged changes to advertising.
Virgin Media, which fared well in the study, accused its rivals of misleading the public.
The report found that the average broadband speed had increased by 10% in the past six months, mainly because people were trying out faster services.
But the gap between advertised and actual speed had widened in the same period. The average advertised speed was 15Mbps, 8.2Mbps faster than the average actual speed.
ISPs 'still mislead' on broadband