I dont know why You have busy window. Is it always busa also on remote and local connection? What is Your camera configuration?
For better understanding:
Camer for now takes info from three data: url, streaming and ip. App always trying to launch steraming if it is avilable. So if in Your lu_sdata there is "streaming" variable, then app try to reach streaming video. If "streaming" is not empty there could be second reason: app doesnt get user and password data, so if Your camera is password protected, then app cannot reach streaming.
The best thing to set the camera parameters is to set ip (by DynDNS) parameter with login and password data. So username and data parameters in Vera leave empty and set ip something like this: user:email@example.com
This is temporary solution because from my information the camera streaming is not finished by MiCasa yet (i could be wrong). There are some changes. So we waiting to fix this, and make this with programming art.
At this moment U can set DynDNS and set parameters as i written above and all will be work fine. If U have problem to do this, please write me PM with Your lu_sdata file.