Wireless

[Milnie]

Using the internet on mobile devices in the house seems to be slow and laggy causung games and videos to buffer alot. Did not have this problem with bt

[Chrisee]

@Milnie sounds like poor WiFi signal. Poor WiFi coverage is probably the most common question we get in the forum. In many homes a single Sky hub cannot provide a usable wifi signal in every room due to the layout and type of construction of the property especially in older homes. Assuming the hub is in the best possible position which is out in the open on a surfsce then the only answer is additional wifi sources. 

Your choice.is to either buy Sky's add-on WiFi Max bundle which can supply up to 3 extenders see https://www.sky.com/help/articles/sky-wifi-max or buy your own wifi system and use that instead of the Sky hub's WiFi.