Why forcing a 4K feed over an encrypted tunnel causes intense buffering — and how to test a high-speed fix…
We always caveat our VPN speed tests by saying something like "but you only need around a 30 Mbps connection to stream 4K video". The trouble is that it's not always as simple as that when you're watching a UHD stream – particularly for an event as popular as the FIFA World Cup 2026.
The best VPNs offer ultra-fast network speeds that can handle ultra-high definition 4K video streaming – but network traffic spikes can bring this to a standstill.
Events like the World Cup cause traffic surging with some popular ISPs, VPNs, and the streaming services themselves struggling under the capacity stresses of having so many users demanding bandwidth at once. The results are often buffering or a reduction in video resolution at the least. Hence why your 4K football match might look a lot rougher than it should.
Server congestion can also cause packet loss, where packets...
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