I was having this same problem and I think I have almost solved it. I have a Linksys WRTG54L router, using the latest firmware available (forget version number offhand). I had UPNP enabled on the router, but the latest firmware for whatever reason no longer shows it, so I am guessing that it is always active now, no clue. Regardless, after having it enabled in the router, and in the settings for the 2 DCS-930L cameras, it still would time out. Next step was to create static IPs for both cameras, did that, still timed out. Next step was to forward TCP Port 80 in my router to the internal IP of the cameras. I made the port forwarding identical for both cameras, which I guess would typically be a conflict, but it seems to have made it work, or so I thought. (I am not all that knowledgeable on networking past the very basics). So last night, I added 2 more cameras to my setup, both DCS-932L. Those took a lot more effort to get setup and added to mydlink, but I eventually got it. Went through all the same steps as above, in the process I changed the IPs of the original 2 cameras, and did all the appropriate settings in the router, but now one of my original cameras is timing out, but the other 3 are not. Is it possible it is just taking longer for all the IP and port forwarding into to get sent to mydlink account? I checked every setting page of all the cams and they are identical, so makes no sense that only 1 times out now.