My 950g (the dog cam) was working fine all last summer.  Didn't use it for a couple months and now I'm having remote access issue.  IP provider change from Comcast to AT&T U-verse.  Camera works fine on home network wired and wireless.  Remote access (outside of firewall) is the problem.  I enter IP address and I get my ID/password logon screen, log in Ok, screen paints OK, can see D-link banner and control buttons but picture is black.  Using 2wiregateway 3800HGV-B, provided by ATT U-verse.  I think I'm missing something on firewall side.
John