Bosses at six of the UK's top net providers are being asked to explain why consumers do not get the broadband speeds firms advertise.

The six executives are being questioned by Ofcom's Consumer Panel which acts as the regulator's customer champion.

The panel wants consumers to get more information so they are not misled about the speed they sign up for.

The panel also has proposals on what net firms should do to improve how they sell and advertise broadband.