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White vertical tower gateway modem with five Ethernet ports and vented sides

ARRIS

ARRIS SURFboard G36 DOCSIS 3.1 Gateway Modem Wi-Fi 6 AX3000

SKU CH-99S0-WJZ6S

A DOCSIS 3.1 gateway modem delivering Wi-Fi 6 AX3000 with four 1 Gbps and one 2.5 Gbps Ethernet ports for up to 4 Gbps download speed

  • Interface typeRJ-45
  • Wireless standardsAX3000
  • Ethernet ports4 × 1 Gbit/s + 1 × 2.5 Gbit/s
  • Supported standardsDOCSIS 3.1
  • Wi-fi generationWi-Fi 6 (802.11ax)
  • Maximum transmission rateUp to 4 Gbit/s Download Speed
  • Up to 4 Gbps download speed with DOCSIS 3.1
  • Wi-Fi 6 AX3000 wireless covers more devices at once
  • Five Ethernet ports include one 2.5 Gbps link for fast wired gear
  • Gateway design combines modem and router in one box
  • ARRIS SURFboard G36 built for modern cable plans

ARRIS SURFboard G36 Gateway Modem

The ARRIS SURFboard G36 combines a DOCSIS 3.1 cable modem with a Wi-Fi 6 AX3000 router in one unit. It supports download speeds up to 4 Gbps for subscribers on compatible cable plans. The device targets households that want to replace rented equipment with a single owned gateway.

Setup and common issues

Connection uses a standard RJ-45 coaxial link and five Ethernet ports: four at 1 Gbps and one at 2.5 Gbps. Activation requires registration with the cable provider using the MAC address printed on the label. The most frequent hurdle is an incomplete provisioning step that leaves the modem stuck in a boot loop.

Sustained load behaviour

Under continuous multi-device traffic the AX3000 wireless radios and 2.5 Gbps port maintain throughput without thermal throttling. The DOCSIS 3.1 upstream channels handle steady upload streams such as video calls or cloud backups. The platform is not built for users who need multi-gig WAN beyond the single 2.5 Gbps port or advanced mesh expansion.

How it compares

Measured against everything we stock in Cable Modems & Gateway Routers, at today’s prices. Recalculated every night.

Price $368.99
Pricier than about 87% of the 122 comparable items (median $120.99).

Specifications

Product
Brand nameARRIS
Product lineSURFboard
Model nameG36
Product typeGateway Modem
Connectivity
Wireless standardsAX3000
Ethernet ports4 × 1 Gbit/s + 1 × 2.5 Gbit/s
Supported standardsDOCSIS 3.1
Wi-fi generationWi-Fi 6 (802.11ax)
Ports & slots
Interface typeRJ-45
More details
Maximum transmission rateUp to 4 Gbit/s Download Speed

Questions about this item

How do I confirm the G36 gateway is delivering the full 4 Gbps download speed after activation?

Connect a device to the 2.5 Gbps Ethernet port, run a speed test on a plan rated above 1 Gbps, and verify the result exceeds 1 Gbps; the front-panel LED will show solid blue when DOCSIS 3.1 lock is achieved.

Which cables and accessories ship with the G36 and what must I provide myself?

The box includes the gateway, a power adapter, and one Ethernet cable; you must supply the coaxial cable from the wall outlet and any additional Ethernet cables for the four 1 Gbps ports.

Should I choose the AX3000 Wi-Fi 6 version or a lower-tier model for a 2 Gbps internet plan?

The G36 only comes in the AX3000 Wi-Fi 6 configuration with a 2.5 Gbps WAN port, so it is the correct single choice for any plan up to the 4 Gbps DOCSIS 3.1 limit.

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