A:AnswerIt only has a single Ethernet port. If you plug it into just one computer, then that is all you need, but if you have multiple computers, a router, be it Ethernet (hard wired) or WiFi, let’s you connect multiple computers to it.
A:AnswerI would contact your ISP if I were you and confirm that this modem is appropriately matched with your service. I made sure to call in with my ISP and confirmed that it would work with their gigabit internet service. I have not had any issues pairing mine to a XR500 by Netgear.
A:AnswerWorks great with Cox. Just need to call Cox customer service and activate it. Quick and easy. I'm not sure about Vonage as I've never used it, but I would think it would work fine if you use a router.
A:AnswerI know that this modem was listed on the Cox and XFinity website as one of their approved modems for their Network. I would check on Atlantic website for their list of approved equipment.
