Hello. Long time vMix user here. I operate a desktop computer for my church congregation where we live stream our Sunday services to Facebook and YouTube. Recently, vMix has been giving me an error message when trying to live stream to Facebook and/or YouTube. The stream will go live for about 10 seconds or so, but then the stream disconnects and gives me an error message. This started happening out of the blue for seemingly no reason. I'm certain that I didn't make any changes to the streaming settings, the internet connection/settings, the firewall settings, or the computer itself. I've double checked that Windows 11 has all the latest updates, that my graphics card driver is the latest version, and that I'm running the most recent update of vMix. I even uninstalled vMix, deleted all of the program data and user preferences, restarted the computer, and installed a fresh copy of vMix. I still get the same issue.

I tested different software (OBS) just to see if live streaming would work, and if not, it would've meant there was something else going on that I wasn't noticing. I can indeed stream to Facebook and/or YouTube with OBS. However, replacing vMix is not an ideal solution, and the live stream with OBS occasionally disconnects and reconnects. I've never had the issue of a live stream disconnecting and reconnecting with vMix when I had it working.

Anyway, I'm a loss for what to do. I consider myself to be a tech savvy person, and when something goes wrong with the church computer or my personal computer, I'm pretty good at figuring out the issue, but this issue is beyond my knowledge of computing. I did search the vMix forums and Google beforehand, but none the of suggestions seemed to resolve the issue. If anyone has any ideas or suggestions, it would be much appreciated. I've included the full log, as well as screenshots of the error message and the computer's specs. Thank you in advance, and have a blessed day.

-Ben



Screenshot 2026-01-19 093310.png (22kb) downloaded 34 time(s). Screenshot 2026-01-19 100602.png (26kb) downloaded 34 time(s).

Well, I don't think it would be an internet issue, since I can stream with OBS. As far as security or anti-virus software, there are no third-party apps installed, just the basic Windows Security and Windows Defender Firewall, and it never blocked vMix in the past. vMix connections are allowed in Windows Defender Firewall, and I never changed any settings, so I find it weird that this started happening for seemingly no reason. I can get vMix to go live, and the stream will run fine for about 10-15 seconds, but then it errors out and the stream stops. It doesn't make any sense. I checked the background processes in Task Manager to see if a process is opening in the background when I hit the start stream button that could be blocking the connection, and I don't see anything unusual. If something is indeed blocking the connection, I haven't got the slightest idea what it could be and how to stop it.