The Christmas lights people put up could be responsible for their crappy Wi-Fi connection at home.

According to a study done by Ofcom, a U.K. regulator, up to six million homes and offices in Britain could have better broadband connections if they set up their wireless networks properly, The Guardian reported.

Various electronic devices can serve as "interference" to wireless networks, The Guardian added. Baby monitors, microwave ovens, and Christmas lights are some of the electronics that can hinder broadband connections. The watchdog also launched a new free app for smartphones and tablets to test coverage in houses that can also provide tips on how to have better Wi-Fi speeds.

BGR reported that the simplest remedy to a slow Wi-Fi connection is avoid placing any Christmas lights, or a Christmas tree, near the router.

Ofcom's research concluded that more than a quarter of U.K. homes have "superfast" broadband connection of more than 30 megabits per second, which is a boost to 7.5 million households compared to last year's six million, the news outlet further reported. However, the presence of speedy broadband connections is less than two in five (37 percent) homes in rural areas.

The regulator said that the issue was caused by remote houses "lying further from the network's local street cabinet or local telephone exchange," The Guardian noted. Ofcom also speculated that by 2017 around 18 percent of residents would still not have superfast broadband services.

"Mobile and broadband have become the fourth essential service, alongside gas, electricity and water," said Ofcom CEO Sharon White, as quoted by The Guardian. "There's been a technological revolution over recent years, with 4G mobile and superfast continuing to extend across the country."

She continued, "Our challenge is to keep supporting competition and innovation, while also helping to improve coverage across the country - particularly in hard-to-reach areas, where mobile and home internet services need to improve. It's vital that consumers have the tools they need, such as the new Wi-Fi Checker, to get the most out of their communications."

Government Plans to Buy Back 700 Mhz Spectrum

This week, the U.K. government announced that it is planning to buy back the country's 700 Mhz spectrum for $827 million (550 million pounds sterling) from its current owners.

Wireless Week reported from the country's 2015 spending review and autumn statement that the plan will be carried out over the term of parliament until 2020. The spectrum transfer will have three main costs: the modification of Digital Terrestrial Television (DTT) transmission infrastructure, the replacement of consumers' DTT aerials or fit filters, and the cost to program makers and special events (PMSE) users.