The recommended settings when using the DLive Stream Servers is:
Keyframe Interval: 2 seconds (THIS IS IMPORTANT)
Video Bitrate: 2500 to 2800
Authentication Needed: No
Encoding: Software (x264) or NVENC H.264
Audio Bitrate: 160
Rescale Output: 1280x720
Rate Control: CBR
Enforce Streaming service bitrate limits: Yes
Encoder Preset: Veryfast
Profile: Main
Recommended FPS: 30
My live stream is at DLive