I've been streaming a bit longer and have never had this problem before.
My stream is running for a good 10 minutes after that OBS loses the connection to Twitch but not my PC it is normal and I can do everything.
Who has an idea
Internet: 1000down 50up (Connected via Lan (5m cable))
PC:
CPU: Ryzen 7 2700X
GPU: RTX 2080ti
MB: MSI MAG B550 Tomahawk
RAM: 32GB G.Skill Trident Z RGB
I've had it a couple of times.
Probably server problems from the Twitch side.
If you are not an affiliate or partner, you can try to use restream.io. (I'm not 100% sure whether this is otherwise legal, even if you don't stream with it elsewhere at the same time. As a non-affiliate or partner, it doesn't matter.)
So don't connect OBS directly to Twitch, just select restream there, etc.
As a result, you are not connected directly to the Twitch servers yourself, but to restream servers, which are almost certainly not so heavily loaded. In my experience, these will then connect to Twitch servers that are safer.
Just give it a try. Otherwise I don't think there's really anything you can do, except for other similar solutions.
Upload speed sounds easy enough. To be on the safe side, speed test how much you actually have, but it will probably not fail.
