Had D-Link for a long time, no issues. If you claim the router you have from Sorenson doesn't work, replace it so you can sleep better at night. If you replace your router and decide to go for one of the newer routers, there's no need change your VP settings. If you buy any new router, just be sure that the LAN address in the new router matches the private IP address "scheme" in your VP (192.168.x.x) and set the DMZ in your router to 192.168.x.125 and replace the "x" with the same number your LAN IP is set up with, which is probably a "0". If you don't know what I'm talking about, I suggest you to contact someone who knows networking and have them do it for you.
Based on my experience, there's probably nothing wrong with your current router other than the fact it is a little bit outdated and lacks the bells and whistles that the newer routers have. A firmware update usually solves the underlying problems. Just So You Know: Your VP isn't ONLY configured to work ONLY with the D-Link brand. It will work with any router that matches the same private IP address scheme, assuming a Sobot (SorensonVRS Robot) initially set it up.
