Ok all, I apologize in advance since I know there's a lot of other topics on this, but I've read them all and still can't figure it out. I'm hoping it's something minor I'm overlooking...
I've got a DCS-920, works perfectly within home network, but no access through internet.
I've got a Belkin N+ wireless router, and Comcast running though my cable modem.
Here are some screenshots that I hope will be helpful. If not, be sure to let me know which ones I can provide and I'll get them up as soon as possible.
Cam network settings screen:

Belkin had me set the DNS to the 4.2.2.2 and 4.2.2.1, but I'm not sure why...problem?
Router settings screens:


Thanks in advance for the help guys. I'm totally stumped about what I'm missing...Sorry for the redundancy of the post but I'm lost!
-Mike