You can set the Application.xml /RTP /Authentication /Play to "none". Or you can set it to "basic" and provide the usrename password inline like this: rtsp://richard:myPwd@<wowza ip>:<my port>/live/rtmp.stream
I thought that was part of the re-streaming URL, and that that part was working?
You can put a querystring at the end of a rtsp url. It doesn't cause that problem, I was sure but tested anyway.
Is it still a problem? If so, re-start Wowza, start the origin stream, and test playback in VLC. Then zip up and send /conf and the current access log showing the re-start and test to