After you enbale emulator debugging, each VM when running will open the VNC ports, the "tecli s e v s" command will display in columns the information of emulators, one column is VNC, this is the LAST number of the port where VNC is listening. so if VNC ID is 0 then port is 5900, if the ID is 5 the VNC port you need to connect to is 5905, you need to use TightVNC, and write the URL wit single colon, 192.168.1.1:5905. The only two clients I know they work correctly with sandblast is Tight VNC and NoVNC (HTML5 Client). Enjoy!