Why I swapped Wi-Fi for MoCA - the low-cost networking fix for dead zones

Source: ZDNet

ZDNET’s key takeaways

• Wi‑Fi is convenient, but it struggles in certain types of homes.
• MoCA 2.5 is an alternative networking option that uses coaxial cables to deliver fast, low‑latency internet speeds.
• With an adapter, you can enjoy stable, high‑speed connections for streaming, work, and gaming.

I’ve always been a champion of Wi‑Fi. Wireless networks are convenient, easy to set up, and, thanks to years of improvements, generally stable. As much as I prefer Wi‑Fi, I’m also fully aware that it isn’t the perfect solution for everyone. Brick and stone walls can weaken or outright block Wi‑Fi signals.

Also: Bye bye, Wi‑Fi: This low‑cost adapter lets you set up a wired network without running Ethernet

The other option is to run a wired connection directly from the router. When you look at your house’s network, you’ll notice that the line connecting your home to your ISP is a coaxial cable. Does this mean you have to rip out all that coax and replace it with a more modern system? Not at all—thanks to the MoCA standard.

What is MoCA 2.5?

MoCA stands for Multimedia over Coax Alliance. It is a networking standard that uses existing coaxial cable to transmit internet data. The most recent version, MoCA 2.5, supports connection speeds of up to 2.5 Gbps and offers low latency, typically under 2.5 ms.

2.5 Gbps isn’t the fastest internet speed in the world, but it’s more than enough for most people. My own ISP caps me at 1 Gbps, and even with dozens of devices connected, my household never hits that limit. For most users, 2.5 Gbps is effectively overkill.

What can you enjoy with MoCA 2.5?

At those speeds you can enjoy:

• Seamless 4K (and even 8K where available) streaming
• Fast large‑file transfers
• High‑resolution video calls
• Stable online gaming, which benefits greatly from low latency and consistent throughput

This doesn’t mean Wi‑Fi has no place in a MoCA‑enabled home. Phones and tablets, for example, still rely on Wi‑Fi or cellular connections. However, for desktop, workstation, and laptop setups, MoCA 2.5 provides the reliability of a wired connection while leveraging existing coax infrastructure.

Also: Slow home internet? Here are 3 things I always check first to regain fast Wi‑Fi speeds

Setting up MoCA

To use MoCA you’ll need a MoCA adapter. A popular choice is the TRENDnet TMO‑321C Ethernet over Coax MoCA 2.5 Adapter. Setup is straightforward:

1. Connect a coaxial cable from a wall coax outlet to the adapter.
2. Run an Ethernet cable from the adapter to your PC (or other device).

You’ll have internet over coax instantly. For additional rooms, you’ll need more adapters. The TRENDnet model is inexpensive at about $65 each and supports up to 1 Gbps via its Ethernet port. TRENDnet also offers a 2.5 Gbps Ethernet version for around $80.

If you specifically want a MoCA adapter with a 2.5 Gbps Ethernet port, consider the goCoax MoCA 2.5 Adapter.