I had problems streaming to laptop (with HDMI connection to TV) on Wi-fi during all the previous games. I bought a cheap 10m Ethernet cable (Cat7) and it was perfect today. It seems even with high speed broadband/Wi-fi live streaming seems to have intermittent buffering problems. Taking Wi-fi lag out of the equation definitely helped (at the small expense of having a temporary cable across the room causing a trip hazard for a couple of hours..)
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