Rubbish signal on wifi

[Trat]

Takes ages to open messages and use the internet the speed is so slow 

[caesarome]

Have you rebooted your broadband router ?

[Trat2]

Yes tried that 

[Trat2]

Says there's a mast down in my area

[PandJ2020]

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@Trat2 wrote:

Says there's a mast down in my area

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That will explain the poor performance.  Your can ask Sky if they are aware of an ETA to fix it.