Internet connection is terrible

[Jenna1985Rob]

my son's PlayStation couldn't find our home Internet wirelessly so I've moved the router and plugged it in again and now nothing is connecting to it. 

[JimM1]

@Jenna1985Rob You moved it from where to where and by what method and what did you plug in with the move CABLES wise!

https://www.sky.com/help/articles/broadband-diagnostic-which-sky-hub