A significant portion of UK broadband users are lagging behind the 2Mb benchmark which communications minister Lord Carter set in his Digital Britain report.
The publication proposed a drive to ensure that every UK address has access to broadband with 'up to' connection speeds of at least 2Mb.
Now new research from broadband.co.uk has found that 38.5 per cent of broadband connections in the UK are languishing below the 2Mb mark.
"These figures cast doubt on how achievable the 2Mbps target set by Lord Carter really is," summed up Edd Dawson of broadband.co.uk.
He went on to reveal: "The current thinking in Whitehall seems to be that the majority of those who cannot receive speeds over 2Mb presently will have the shortfall made up by the use of mobile broadband."
Despite the finding, further figures show that the average UK broadband speed now stands at 3.8Mb, representing a record.