You won't find a built-in wireless router ?

Motorola MB8600 vs MB8611 A modem's four ports demand a rationale for their existence. The MB8600 does not have routing capabilities. The MB8600 is only a modem. A router can be connected to any of the MB8600's GigE ports. A gigabit per second connection between the router and modem will be possible with Comcast's new DOCSIS 3.1 service. Faster than 1 Gbps offerings from Comcast and other cable companies are expected in the future. The MB8600's additional ports will be needed when such faster services are available. Ports 1 and 2 of the MB8600 can be linked together to provide throughput of up to 2 Gbps.
A future-proofed design is the MB8600 model. You'll need a router that supports Ethernet port bonding for extremely high speeds, or rates more than 1Gbps, because this supports Ethernet port bonding for extremely high speeds, or rates greater than 1Gbps. In the near future, certain service tiers or routers will be available.
Until then, you can use any router. You'll be able to pick and choose how much wireless technology you want. In this case, an AC1900 wireless router would be the one to blame.
Good news: Motorola Cable modems with built-in routers can be configured to allow port forwarding. There are WiFi routers from Motorola with model numbers that begin with MG. Amazon carries the models MG7700, MG7550, MG7540, and MG7315.
Only one device can be connected to the MB8600. With the MB8600, you can hook up a computer or a wireless router. You can connect up to four devices directly to the MB8600 if you pay for and receive several IP addresses from your service provider.
A 2.5 GB Ethernet port can provide truly high-speed connectivity to even the fastest routers and PCs, with downstream rates slightly below 2,500 Mbps and upstream speeds up to 800 Mbps when enabled by your internet service plan.
The eero, Google Wi-Fi, and Orbi wireless routers are all compatible with the Orbi. A 10/100/1000 Gigabit Ethernet port can be used to connect any ONE piece of equipment that has an Ethernet port, including a router, a Windows or Mac computer, an HDTV, or a gaming station. You won't find a built-in wireless router or the ability to make phone calls in this cable modem.
An active queue management (AQM) technique significantly reduces Internet latency on both the DOCSIS 3.0 and 3.1 networks. This means that all Web traffic will load pages faster, which will improve interactive applications like online gaming and video conferencing. The MB8600 contains a digital tuner that captures the complete range of frequencies.

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