As I have the older hardware, I'm unable to say with any certainty how the setup works via the newer generation stuff. On the old hardware, the brain unit acts as a wireless access point and the sensors and cameras talk directly to it wirelessly. The brain is then hardwired via Cat-5 cable to my own router to give it access to the network. I simply opened up Port 80 on my router to allow outside access to the brain so the alarm monitoring center can see it. The new hardware may or may not be this way. They may have offloaded the wireless function from the brain over to the Netgear router they now supply. Personally ? I would tell Xfinity they have until Thursday to get it up and working correctly or they can come pull all of their alarm hardware out. Plenty of other alarm services out there that can set you up without wreaking havoc with your existing home network. Shoddy installation practices are common for Comcast unfortunately. Had one of their techs " fix " my neighbors cable ( they cut it in half with a shovel ) by running a new one and disconnecting my line from the distribution box and connecting their new line in it's place :| When I told Comcast what had happened, they informed me it would be at least two weeks before they could dispatch a tech to fix my problem. . . . $200 / month for their service and this is pretty much standard operating procedure for them. *sigh* Give the other alarm companies a ring and see what they can do for you. Nothing motivates folks faster than losing a potential sale.
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The installation of their router is not necessary. You simply need to open port 80 on your existing router to ensure they can communicate with the alarm brain. Since most folks ( including the install techs ) do not know what the my first sentence means, they simply install their own hardware that is preconfigured for it. At least this is how mine is configured. When it was first installed, they couldn't connect to the brain. I fired up NMAP and ran a scan and noted that port 80 was wide open. Figuring that was the port they wanted to use, I simply opened up the port on the router and voila. Done. Outside of celluar connection issues, no other problems with the setup since.
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