Go Compare said more than 3.5million households suffered broadband delays, 1.4 million experienced a late start of a new service and 2.1 million waited for a repair following a loss of service.
Matt Sanders, broadband expert at Go Compare, said: "The Ofcom automatic compensation scheme is great for users as it promises money back for any problems without having to claim for it yourself.
This means your broadband provider is signed up to the scheme, you have dealt with one of the problems listed above, and your broadband provider is aware of the issue.
When you see issues with your connection, you could be due a payout from your provider through Ofcom's broadband automatic compensation scheme.
With 85% of broadband users with a provider that offers automatic compensation, the majority should've received a compensation payment.
