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UnalignedByte

Cancelled
Original poster
Feb 10, 2013
42
85
I'm having a strange issue with video streaming, which suddenly stops working (as if it was not able to buffer anymore). It happens on different websites (I tried Youtube, Netflix, Vimeo) and browsers (I tried Safari and Chrome), so it has to be a system issue. restarting wifi or browser doesn't help, I need to restart whole macOS so it can work again. It's not a problem with network because i keeps working perfectly fine on my phone or PS4. It doesn't happen constantly, once in a couple of days. Has anyone else experienced a similar issue? I'm running latest macOS 10.15.4.
 

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HDFan

Contributor
Jun 30, 2007
7,290
3,340
When you get the buffering problem what are the results of a network speed test?
 

UnalignedByte

Cancelled
Original poster
Feb 10, 2013
42
85
When you get the buffering problem what are the results of a network speed test?
I haven't tried that, but everything else seems to be working fine, websites load as before. Just the streaming is an issue. I also noticed that streaming internet radio on a certain website also stopped working until I restarted the computer.
 

UnalignedByte

Cancelled
Original poster
Feb 10, 2013
42
85
I got that issue again, it seems to happen after waking the laptop up. However, I also noticed that audio and video files weren't playing, so it wasn't related to streaming itself.

Turns out changing audio output to built-in speakers fixes the issue. I have the laptop connected over USB-C to and LG monitor, which has speakers plugged in. The issue must be with USB-C (either on laptop or monitor side) not waking correctly after the wake up. Of course, the monitor itself still works fine. Eh, USB-C is great but it has so many rough edges.

Re-plugging the USB-C cable fixes the issue.
 
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jlam520

macrumors newbie
Dec 14, 2020
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Thank you so much for this post @UnalignedByte. I'd been having this same exact issue all night, with video streaming across different browsers and websites. This had been happening occasionally over the past few weeks. I'm on macOS 10.15.7.

I have an audio interface plugged in through USB, and I have a multi-output device set up through the Audio & MIDI settings that reroutes the audio interface signal.

It turns out that if I 1) have my audio output set to the multi-output device and 2) my audio interface is not plugged in, video streaming doesn't work. It's very consistent. I play a video on YouTube with audio output set to the multi-output device and audio interface unplugged, and the video doesn't load. I change my audio output to built-in output, and the video immediately starts streaming flawlessly. Or, I can plug in the audio interface to fix the issue.

And you're right; with this bug, local video files also don't play.

Very, very strange bug.
 
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