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3 separate secure networks - 1 modem? SURFboard Gateway SBG6580

I want to set up 3 separate networks using the SURFboard Gateway SBG6580, one cable internet signal form Comcast. I was thinking I might be able to run the RJ45 Lan cables to separate routers from the jacks on the the modem and set up separate SSID's. Is this possible and how should it be done?

Also, I was wondering if I simply used a single port modem with a 3 way - Y if the same thing could be accomplished?

I have enough band width form the ISP.
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More about separate secure networks modem surfboard gateway sbg6580
  1. 3 Separate networks = 3 separate bills from Comcast. With Time Warner merging with Comcast, I'm sure it's the same procedure but they'll only support one Modem at a time, if one is working, the other will just display a page asking you to contact Time Warner / Comcast customer service.
  2. Best answer
    Since the "modem" you have is actually a router you can put 3 other routers behind it and treat the surfboard as the ISP. Not sure why you want to do it but it will keep the networks seperate until you get to the surfboard. At that point the will share the internet bandwidth.
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