I'm having this issue as well. I sent an email in to twitch. It's not OBS because both xsplit and FFsplit have this problem as well. Really getting to be a pain, cause even if i'm just streaming my desktop it attempts to reconnect, so it's not some sort of compatibility issue with a program. I've also tried a good amount of their ingestion servers, but none seem to work. Short of my ISP deciding to throttle me and it taking place overnight (Which I guess is feasible), the problem seems to be with twitch.