Spark Sport is investigating why its international streaming feed was disrupted midway through the All Blacks' epic Rugby World Cup encounter, forcing it to screen the game live on free-to-air TVNZ.
The telecoms giant says the issues - including buffering and pixelated images for some customers - was not caused by New Zealand's broadband capacity.
In a statement early on Sunday, Spark said: "The root cause of the video streaming issue is still being investigated with our international streaming partners. However, we can confirm that the issue was not related to New Zealand broadband capacity, with the demand for this game well within our operating thresholds. It was not confined to customers of any particular broadband provider."
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The match was initially delayed by an hour for free-to-air viewers on TVNZ but the second half was aired live after Spark said they were "uncomfortable" with the quality of the streams that some customers were receiving.