For the second year in a row Amazon's Prime Video streaming service has been the only way for people in the UK to watch the US Open.
The while the tech giant successfully outbid traditional broadcasters, with a US$40 million, five-year deal, its performance has fallen short.
On Wednesday evening, during coverage of the quarter-finals, subscribers reported widespread connectivity problems leaving viewers without access to live coverage of the matches.
It's the second year of problems since the event went streaming-only.
Last year, Amazon was inundated with complaints and stopped British tennis fans from posting reviews, according to a Guardian report. Before the blackout, 90 per cent of 650 reviews gave the service one or two stars out of five.