What is the Arris G36?

The Arris G36 is a combined cable modem and Wi-Fi 6 router you install at home to replace your ISP’s rented box. It supports DOCSIS 3.1, the modern cable internet standard for fast speeds, and Wi-Fi 6 for better wireless coverage. It can work with major cable providers like Xfinity, Spectrum, and Cox.

This model can save you money by cutting out monthly rental fees while delivering fast internet speeds for gaming, streaming, and more.

Key Specifications – Quick Table

Feature What It Means
DOCSIS 3.1 Latest cable modem tech (faster than older DOCSIS 3.0).
Wi-Fi 6 (AX3000) Faster wifi with better range for many devices
Max speed (real tests) ~790–980 Mbps over Wi-Fi on gigabit plans.
Ethernet 1 × 2.5 Gbps + 4 × 1 Gbps.
Compatibility Works with most cable ISPs (not DSL or fiber).
Coverage ~2500–3000 sq ft for medium homes.
Warranty Varies by retailer.

Real-World Performance

Speed and Throughput

In independent tests, the Arris G36 paired with major cable plans often delivered consistent throughput around 790–980 Mbps — close to full gigabit speeds for download and streaming. Mini PC Reviewer

Wi-Fi 6 delivers strong wireless performance for phones, laptops, and gaming consoles. Many users found the signal reaches most areas of a medium or large home — about 2500–3000 sq ft — though thick walls can weaken signal strength.

Coverage and Reliability

Users report good Wi-Fi coverage and fast connections for video calls, 4K streaming, and online gaming. However, feedback varies — some households see excellent reliability, while others report occasional drops. Review-Rating

Pros — What It Does Well

✔ Faster internet speeds than older DOCSIS 3.0 modems, supporting multi-gigabit plans on cable networks.
✔ Wi-Fi 6 technology improves speed and device handling vs older wifi standards.
✔ Integrated modem + router saves space and simplifies setup.
✔ Saves money by avoiding ISP rental fees.
✔ Compatible with major cable ISPs like Xfinity, Spectrum, and Cox.

Cons — What Could Be Better

⚠ Mixed reliability reports: Some users report intermittent drops or reboot needs. ShopSavvy
App issues: The companion Surfboard app can be glitchy and hard to use.
2.5G port quirks: Certain switches and wired setups may not always work smoothly.
Limited customization: Advanced users may miss deeper network settings.
Not universal: It won’t work with DSL or fiber ISPs — only cable internet.

Real User Feedback — What People Are Saying

Some users love the speed and coverage, especially for streaming and gaming. Others have experienced intermittent connections or setup struggles with their ISP.

Examples from real user reviews:

  • A user reported regular connection drops and timeout errors, even with ISP technician visits.
  • On retailer sites, many reviewers rate it positively for performance, but a significant number also report reliability problems.
  • Some buyers praise the easy setup and performance for regular use, like streaming and browsing.

These mixed experiences show that performance can vary based on ISP setup, firmware, home layout, and signal conditions.

Common Issues & Simple Fixes

Here are common problems users have shared and how you might fix them:

 Issue: Wi-Fi Drops or Devices Disconnect

Fix: Turn the modem/router off for 30 seconds and restart. Sometimes updating firmware (through your ISP) helps.

Problem: Hard to Activate with ISP

Fix: Confirm with your ISP that the MAC address of the G36 is correctly entered in their system. If not, login with exact modem ID.

2.5Gb Port Not Working Well

Fix: Try switching to a 1Gb port or use compatible multi-gig switches recommended for the router.

Who Should Buy the Arris G36?

  • Gigabit internet users — If you pay for high-speed cable plans and want close to full speeds without ISP rentals.
  • Streamers and gamers — Good speeds and wireless performance for video and games.
  • Homes with many devices — Wi-Fi 6 handles many connections better than old routers.

Who Might Want to Look Elsewhere

Large, multi-story homes needing stronger Wi-Fi range — Might benefit from mesh systems instead.
Users with DSL or fiber internet — This model won’t work with non-cable providers.
Advanced tech users — May want deeper network controls or mesh integration.

Verdict — Simple Summary

The Arris G36 is a feature-rich cable modem and Wi-Fi 6 router combo that delivers fast speeds and good coverage for many homes. It shines with gigabit internet plans and helps users avoid rental fees. However, real-world reliability can vary, and some users report connection or setup hiccups that need attention. Overall, it’s a solid choice for everyday internet users who want speed and simplicity without complex networking needs.

Summary

ARRIS G36 Cable Modem Router Combo — Combined modem and Wi-Fi router with DOCSIS 3.1 and Wi-Fi 6. Good for gigabit plans and modern homes, with mixed reliability feedback.

Disclaimer

This review is for general informational purposes only and is based on independent research; product performance may vary and specs or prices can change without notice.