Using the full stream url: http://192.168.1.6:8081 works!
I'm going to see if I can run this in Docker on Synology.
Thanks for the info all!
Glad you got it going.
Switched over from AgentDVR to MotionEye and updated all my Rokus to point to it. CPUs utilization went down to average 33%. I've disabled the AgentDVR docker container. Thanks for the suggestion and the help!