Buddy,
I think i just figured it out....
i ran IPOLIS, obviouslly it said that cannot connect to network.
so i went to setup, device list, choose my dvr, and changed my ADDRESS TYPE from IP to DDNS. your DDNS is (samsungipolis.com/whatever name you you registered your device.)
and that easy.....
I guess we have to be switching once and a while....
hope it helps with you