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AppleTV installing apps fails - possible fix

BLS

I recently upgraded to the Sophos XG from the Sophos UT firewall because I was bored and it was something to do :)

 

One thing that I did notice is that the Apple TV would refuse to download apps, or even update them

 

It would appear that Apple use digicert to provide some level of certificate based encryption first which is blocked by the Sophos XG firewall for reasons unknown.

 

If you add the following to the exceptions list of the web filter things are working again

^([A-Za-z0-9.-]*\.)?digicert\.com\.?/

I've bypassed everything.

 

Hope this helps someone who finds themselves in the same boat as I was.



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    Scrub that - it did it again.

     

    So I removed the digicert exception and turned off every check box one by one until it would download...

     

    As soon as I disabled "Enable Web Content Cache" it sprung into life and would let me download once again.

     

    Coincidence? - who knows but will try again as it seems to be time related as to when it will and won't let me download.

     

    I don't ever remember enabling cache as I know it can create other issues.