Wyse s10 e VNC

Wyse s10 e VNC

Hello,
Im having problem conecting to a wyse s10 via VNC.
Using a UltraVNC Viewer i tried to access the wyse, in the wyse pops up a notice to accept shadow view.
After chosing yes on the wyse the UltraVNC Viewer still dont connect, keeps showing status of Password requested (but no password was entered).
I'd like to know how can i connect via VNC to the wyse s10 and how can i check the OS of the wyse.
Wyse Info:
- version: 6.5.0_22;
- OS Wyse ThinOS (apparently).
UltraVNC Viewer - Win32 1.0.9.5
Thx
Barata