Hi,
latest version of FSUIPC is 3.48 at
http://www.schiratti.com/dowson.html .
And the router program shows 2 symbols in the left upper corner:
1st for FS connection and 2nd for COM connection.
Both with a red cross (or something else...) at startup. the red cross dissapears at COM connection but not at FS connection (FS is running!).
With an older version of FSUIPC (dont ask which one...) all worked.