@A+abbs bufering on a Firestick usually means there is an issue with wifi signal which small streaming devices which plug into the back of Tvs are prone to. Amazon sell short HDMI extention cables that allow the firestick to be placed in am area with better wifi coverage.
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65inch Sky Glass, 3 Sky Streaming Pucks, Sky Ultrafast + and Sky SR213(white Wifi Max hub) main Wifi from 3 TP-Link Deco M4 units in access point mode
