Indian channels have technical issues.

[Fagli]

My Indian channels like Sony TV and B4U movies seem to have technical issues for the last few months. There is nothing ubstructing my dish and it hasn't been changed. When weather is heavy rain I get a blue screen and a message on screen saying there's a fault, when it's not raining the image glitches for a long time. Sometimes it's absolutely fine. 

[TimmyBGood]

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@Fagli wrote:

There is nothing ubstructing my dish and it hasn't been changed.

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A slight change in alignment, which typically generates those symptoms, wouldn't be perceptible by eye.

You'll need to log the issue with Sky and get an installer to check using a signal meter.