We all love to moan about our less than ideal internet speeds, but do you really have the UK's worst broadband?
TalkTalk was voted the worst provider of all with a customer satisfaction score of 38pc, while BT got 45pc but did not score more than two stars in any category.
BT and TalkTalk customers are not getting the broadband service they deserve.
'It is unacceptable broadband customers remain so dissatisfied with the services they receive.
Propping up the rest of the market, TalkTalk received just a 38% satisfaction rating, with just one in 10 customers describing the service as "excellent".
The four account for nearly three-quarters of the United Kingdom broadband market.
EE and Sky performed only slightly better scoring 48pc and 49pc respectively.
"BT didn't score higher than two stars in any of the categories and TalkTalk only scored higher than two stars in value for money, with Virgin Media (52 percent) and Sky (49 percent) only performing marginally better", Which? added.
Only a third of providers (four in 12) scored more than three stars for broadband speeds.
Lesser known Zen Internet and Utility Warehouse were the only companies that were awarded five stars for customer service.
"Broadband is essential and people rightly get frustrated with poor service", commented Alex Neill, Which? Managing Director of Home Services.
"Our latest results show that the big players still have a long way to go to satisfy their customers, so if you're unhappy with your broadband, complain and look to switch if your service doesn't improve".
Last month, a similar survey published by Ofcom, Britain's telecoms watchdog, found 51% of broadband customers were "very satisfied" with their providers, while 36% were "fairly satisfied".
Today's report comes as it was revealed that customers at some of the UK's biggest broadband providers are being hit with huge bills following the end of their special offers, new research has claimed.