I think there is a bug in the application - try this.....
1) Delete the camera you added in D-Cam View, so it's essentially a fresh install with no cameras
2) Set an admin password on the camera, so that when you click on setup in the browser, you have to enter the password to be able to change any settings
3) Try to add the camera in D-Cam View
If I remove the admin password I have set, I can add the camera in D-Cam View, and I can then set the password and still view the camera in D-Cam View, but I cannot add the camera whilst the password is in place. I don't know if it makes a difference, but the password I am using would be considered a strong password in that it is 8 characters and includes both upper & lower case, numerics and punctuation characters.