TalkTalk has insisted that Ofcom must act straight away to address fundamental issues in the broadband sector.
Last week, the regulator published its Strategic Review of Digital Communication, which outlines a strategy to promote the rollout of ultrafast broadband facilities on a large scale, based on cable and fibre lines.
However, TalkTalk believes that Ofcom has produced "100 pages of consultation with little concrete action behind it".
Dido Harding, Chief Executive of the firm, is concerned this means that any tangible steps forward may come later rather than sooner.
"The risk is that we end up with ten more years of debate and delays, rather than facing into the problems and delivering improvements for frustrated customers now," she commented.
Nevertheless, Ms Harding said Ofcom has done well in "identifying many of the worst problems". For instance, she said the report recognises that BT's control of Openreach creates a "fundamental conflict of interest which hurts customers".