As already said, make sure, that in the streaming server configuration dialog all values including the address and credentials (username and password) are okay. From your screenshot they don't look okay (you use admin where the source should be used).
NOTE:
The
Source username is by default 'source' - where you have specified 'admin' and the source password is typically different from the
Admin one.
Make sure you have specified the correct username and password for Source!
Then make sure, that the streaming server is actually started in the Network Streaming Monitor window panel.
(the 'Connect at Startup' option is applied when ProppFrexx starts - mot in general when you set it up initially)
In the streaming monitor window, right-click on the entry and select 'Start...'
Then make sure, it shows 'CONNECTED' after the entry.
Else make a click on the stream icon (2nd one, which should be green if connected) for that entry to show the last error message (if any).