Subscription error “You don’t have the required subscription”

[Sky+help+123]

I've got a Sky + box and the last few Channel 4 programs I've downloaded all say Subscription error “You don’t have the required subscription” when trying to view the program. I have all the main sky packages apart from Cinema. I'm not sure why this has stopped working or what subscription I would require to watch Channel 4 programs.

[caesarome]

If the Chasnel 4 program is part of Sky Boxsets then you need the Signature package or the old boxset one on your account before getting access to it so does this apply to you ?

[Sky+help+123]

@caesarome I have the Sky Signature pack which includes box sets.

https://helpforum.sky.com/t5/Sky-TV/What-is-Sky-Signature/ba-p/3684047

[Annie+UK]

Have you got the HD pack?

[Sky+help+123]

@Annie+UK Yes I have the Sky HD pack as well.

[caesarome]

Do you get this message on anything else from other broadcasters or is it just Channel 4 ?

[Sky+help+123]

@caesarome I've been able to successfully download and watch programs from sky sports and from BBC. Just seems to be Channel 4 that's the issue. 

[caesarome]

It might be worth doing a new install to see if this helps:

Make sure your Sky viewing card is correctly inserted into the box.
Press Services on your Sky remote
Press 0, 0, 1, Select (setup should now be highlighted)
Scroll across to New Install
Press Select twice

[Sky+help+123]

@caesarome Would that delete everything already stored on the box?

[Annie+UK]

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@Sky+help+123 wrote:

@caesarome Would that delete everything already stored on the box?

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Nope

[Sky+help+123]

@caesarome New Install has been run and successfully completed but still no joy I'm afraid. 

[Annie+UK]

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@Sky+help+123 wrote:

@caesarome New Install has been run and successfully completed but still no joy I'm afraid. 

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Next step wuld be to contact Sky and have your account checked their end

[Sky+help+123]

After a did the New Install it actually made things worse as my Sky HD channels, for example Sky Showcase HD was replaced with the SD version. My guess would be that there was some kind of subscription error on my account which thought I didn't have HD package. A few days later however my HD channels have reappeared and I can now download and watch from Channel 4 (in HD) again.