I have a REVO DVR system behind my SonicWall TZ210 firewall and have ports 8200, 8016, 12088, and 10019 forwarded to the DVR system. However, when I connect remotely the ports are not forwarding to the device. After running a port scan for the previously mentioned ports on yougetsignal.com I saw that the ports were showing up as closed. Has this happened to anyone before and how do I get the ports to forward correctly? Likewise, how can I enable UPnP on the SonicWall? I cannot figure out how to do it from the results that I got in a Google search.