Help! In January 2013, I purchased a slingbox 500 to use with my new surveillence system. The slingbox would allow me to view my house from anywhere in the world. This was great! I was able to view my house internally (still can), and externally (can't anymore). A couple of months ago til now, I'm no longer able to view my house externally. The message I get is "cannot locate system server". Can someone shed some light on what the problem is? Is it the external IP address? What do I need to do to get this fixed?