1. Double check stream key and, if necessary, issue a new stream key via and invite link and the STAGE TEN Connect interface (remember to leave the Connect window open).
2. Double check the RTMP URL, which will be rtmp://app-rtmp.stageten.tv/stageten/
3. Double check your OBS settings -- see out recommended OBS settings here: http://support.stageten.tv/advanced-usage/using-rtmp-feeds/set-up-obs-to-use-with-stage-ten
4. Double check you have the latest version of OBS Studio: https://obsproject.com/