Fairy lights on Christmas trees can cause slower broadband speeds, according to Ofcom. The communications watchdog says wireless networks in homes and offices are often set up incorrectly or they're suffering from "interference" from electronics with wiring like baby monitors and things like microwaves. Ofcom has launched a free app called Wi-Fi Checker which allows you to test the quality of your signal and ways to make it better.
Here's BBC Newsbeat's 10-point guide to making your signal strength stronger.
With a bit of tinkering, you'll have all your gadgets humming along on the perfect network in no time.
If your Samsung Smart TV won’t connect to WiFi, there are a few things you can try to fix the issue.
Here’s a step-by-step guide for you to connect Echo Dot to WiFi.
