I am not an expert with Sophos firewalls but have used them (UTM & XG) for about 6 years now as my home and company firewalls.
I have had this Apple TV device for some time now and never have had the Netflix app working properly. I was wondering if this community could help me out with this because I am a bit out of ideas now.
What I have done is that I have a normal Netflix account which I am using in my home network with multiple devices and everything else is working fine but this AppleTV device with Netflix app. Netflix app is working fine until the video stream should be starting when it says only "An Error Occurred Loading This Content. Try again later!". The same thing with UTM and XG both.
My UTM and XG are installed as VMs' in my NAS and everything else works fine.
I have tried Netflix with several devices and applications in my network in which all the traffic goes thru this same firewall. Here is now it works:
1) With my Android cell phones and Tablets everything works smoothly and I can watch whatever I want from Netflix without any hickups
2) WIth my Windows 10 computers and laptops the same than previous. No hickups.
3) WIth my Samsung and LG TV Netflix Apps again the same thing. No hickups. Everything is smooth.
4) Even with my Linux computer and Kodi mediabox works fine with Netflix. Streams works well.
5) This AppleTV do not give stream even it has exactly the same network and setup. Everything else works with this AppleTV netflix app but this last and most important part the video stream does not.
6) My spare gateway is this slower Ubiquiti USG3 firewall and it works fine with AppleTV Netflix. Stream goes well.
So there is something fishy with AppleTV Netflix app and Sophos firewalls. I just cannot figure out what.
I have tried the instructions of this thread but no help. Same subnet, same gateway, same DNS but no success. I have no any exotic setup in my firewall pretty much default everything. Some small adjustments but not anything that could block anything important. Everything works.
And please if you have any suggestions put them so that me as a casual user understand what you trying to say. No pro lingo like "put the MASQ on in new host in FQDN and override policy on DNAT user". I have no idea what you talking about :)
Show me what and from where (and why). Thank you.
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