What is the minimal Network bandwidth for UHD HDR streaming (4K)? The minimum recommended bandwidth is 20mbps and above. Additionally, it would be preferable to have a fibre broadband package, to stream programmes, shows, and movies in 4K. Related articles How do I switch between a wired/wireless connection? How do I restore my NetBox 4K to factory settings or reset? What did the most recent software update change? How do I pair my Netgem TV device with a Bluetooth device? How do I cast a programme from an app to my TV? Comments 0 comments Article is closed for comments.