Many viewers experienced frustration with the quality of Monday’s key episode. Netflix has taken a big stumble on the road to “Wrestlemania.” The streaming service has been the exclusive host of live ...

Streaming high-definition and 4K video on a massive scale turns out to be difficult. You can tell when this live event took place by looking at networking problem monitors such as Downdetector.com.

The 97th Academy Awards ceremony kicked off at 7 p.m. ET/4 p.m. PT, airing on ABC and livestreaming on Disney’s Hulu. But as of 4:28 p.m. PT, more than 34,000 users reported problems accessing Hulu, ...