Running Cat6 Through Walls Is Painful (2026)

For most homeowners, achieving stable and fast internet in every corner of the house feels like a constant battle. Whether you're trying to eliminate buffering while streaming 4K content or ensure lag-free video calls in a home office, the goal is the same—get a hardwired connection to the rooms that matter most.

That usually means running Cat6 Ethernet cables to key locations. On paper, the plan looks simple. In practice, threading cable through finished walls, across floors, or around existing construction turns into a weekend-consuming, drywall-patching headache. What should improve your network ends up costing time, effort, and quite possibly your sanity.

There’s a better way, and it starts with using what your home already has: coaxial cable. This is where MoCA comes in—and it changes everything.

Why I Wanted Ethernet in Every Room

Wired Performance Beats Wi-Fi, Every Time

Wi-Fi can’t deliver the consistency a wired Ethernet connection provides. A direct connection sends packets faster and with significantly reduced latency. According to IEEE standards, a Cat6 Ethernet cable supports up to 10 Gbps over distances up to 55 meters. In practice, even at 1 Gbps, latency stays below 1 ms—something Wi-Fi rarely matches under load.

Streaming videos in 4K HDR? No buffering. Video calling for work? Ultra-stable. Competitive online gaming? No random lag spikes. That’s the difference a hardline makes.

Streaming Needed Stability—Not Excuses

The smart TV in the basement stuttered mid-show, especially during evenings when network congestion peaked. With Wi-Fi, bitrate throttling kicked in regularly, and image quality dipped. A hardwired Ethernet line fixed that entirely—streams now load in full resolution instantly, and buffering disappeared.

Work and Gaming Demand a Solid Connection

The upstairs office doubled as a remote work base and a gaming zone. Zoom calls dropped on Wi-Fi. VPN connections struggled. Game ping times fluctuated wildly, sometimes spiking over 300 ms. Once connected via Ethernet, ping times stabilized at 8–12 ms consistently, and large file uploads completed twice as fast.

Initial Layout Created Frustration

I needed a network backbone that didn't depend on airwaves—or cutting into drywall. That’s when everything changed.

The Nightmare of Running Cat6 Through Walls

Tools, Tactics, and a Steep Learning Curve

Before I considered alternatives, I committed to the classic approach: pulling Cat6 Ethernet cables through walls. That meant collecting gear and knowledge—fast. My kit included 50 feet of fish tape, a high-sensitivity stud finder, drill bits capable of punching through top plates, and a scope camera to peek inside wall cavities. On the knowledge side, I had to understand framing layout, wall composition, and how to avoid electrical interference caused by nearby Romex runs.

But theory rarely matches reality. Once I started, every two feet brought a new complication. Some walls contained unexpected fire blocks. Others had insulation packed so densely that fish tape would snag mid-way. Despite having a fairly modern toolkit, progress slowed to a crawl.

Walls That Fought Back

The real challenge came from the house itself. Built in the early 1960s, it featured zero-consistency wall structures. Some were standard 16-inch spaced studs; others went up in 24-inch gaps interrupted by horizontal blocking. On one stretch, I drilled into what I later found out was lathe and plaster—roughly ¾ inch thick and brutal on pilot bits.

Meanwhile, attic access was a no-go. HVAC ductwork spanned every direction, and blown-in insulation made navigation unsafe and unworkable. The crawlspace underneath? Just 20 inches at its highest point, with joists crisscrossed by plumbing and legacy knob-and-tube wiring.

The Budget Wall Hit Harder Than Drywall

I considered hiring low-voltage pros. A two-room install was quoted at $750, not including wall patching or Ethernet jacks. Multiplying that across four rooms took it past $2,500—well outside my limit. DIY felt like the only path forward.

Eventually, I managed to snake a single Cat6 line into the guest room. Victory, sure—but it took six hours, three destroyed drill bits, and a 1x1 foot hole I had to patch (badly). Attempt #2 ended when I drilled directly into an unexpected junction box.

At that point, frustration eclipsed determination. Tools sat untouched for weeks. Streaming suffered. Remote work from the home office stayed stuck on subpar Wi-Fi.

The turning point came from a chance comment on a home networking forum.

Enter MoCA: My Ethernet-over-Coax Lifesaver

What Is MoCA, and Why It Changed Everything

MoCA stands for Multimedia over Coax Alliance. This technology transforms the coaxial cabling already inside the walls—originally used for TV—into a high-speed, low-latency Ethernet backbone. Instead of tearing into drywall or mapping intricate cable runs through crawlspaces, MoCA adapters deliver gigabit-speed Ethernet via the same cables that carry your cable TV signal.

It doesn’t interfere with your television service. It doesn’t require rewiring. It simply coexists with your indoor coax setup and unleashes wired network speeds along its path. MoCA 2.5, the current dominant version, supports up to 2.5 Gbps of aggregate throughput with latency as low as 3.6 ms, rivaling wired Ethernet in performance.

How I Discovered MoCA—Out of Desperation

I stumbled upon MoCA technology during a late-night search session fueled by frustration. After two failed weekends routing Cat6 through insulated exterior walls and fishing cables behind baseboards, I needed a smarter route. So I explored options I hadn’t considered before—Ethernet over powerline, mesh Wi-Fi, and finally, MoCA.

The search led me to hardware reviews and networking forums where users shared near-universal praise for MoCA stability and throughput. I zeroed in on two standout names: Actiontec and goCoax. Both companies offered plug-and-play MoCA adapters that required no software, no IP configuration, and no network re-architecting—just coax and a power outlet.

With nothing to lose and plenty to repair, I ordered a pair. Delivery arrived by the weekend, and everything changed shortly after setup.

My MoCA Setup and Action Plan

Scanning the House for Coaxial Potential

The first step wasn’t technical—just observational. I walked through the house, room by room, checking for coaxial wall plates. Thanks to a legacy of cable TV and a short-lived satellite dish experiment, coax runs were already in place in every major room. Jackpot. That network of existing cables meant no drilling, cutting drywall, or fishing Cat6 through insulation-filled cavities.

What I Ordered

With coax access confirmed, I assembled the components:

Installation and Configuration Steps

Setting everything up took under 30 minutes. No network certifications required.

With no drivers to install and no IP settings to tweak, the adapters auto-paired in seconds. Link LEDs indicated an active MoCA connection at full 2.5 Gbps potential.

The Results: Ethernet Performance Without the Hassle

Internet Speed and Stability Redefined

Once MoCA adapters were connected and paired across coax jacks in different rooms, the difference became immediately measurable. Using iPerf3 to benchmark speeds, throughput between nodes consistently exceeded 930 Mbps—well within gigabit Ethernet territory. Latency remained steady in the 2–4 ms range, with virtually no jitter.

Video calls that once staggered under weak Wi-Fi signals now stayed rock solid. Over a two-week testing period, not a single Zoom call dropped. Large cloud file uploads completed in a fraction of the time they used to take over wireless. And simultaneous streaming across multiple devices never caused a dip in performance.

Streaming and Gaming, Reimagined

The smart TV in the living room used to buffer when skipping around in 4K content, even with "high-speed" mesh Wi-Fi. After switching to MoCA, apps like Netflix and Disney+ began buffering full-resolution content within 2–3 seconds. Seeking through media became instant, and multiple users streaming at once had no impact.

Console gaming saw the most dramatic leap. Multiplayer FPS sessions on the PS5 recorded ping times that dropped from 45–60 ms to 12–18 ms. Matchmaking sped up, in-game lag vanished, and downloads from PlayStation Network hit peak bandwidth consistently. Game updates arriving in gigabyte chunks downloaded at over 100 MB/s, matching the fiber internet's full capacity.

No extra holes in drywall. No cabling draped along baseboards. Just Ethernet-grade performance without ever swinging a hammer.

MoCA vs Wi-Fi: Real-World Performance That Tells the Full Story

Speed and Latency: Numbers That Don’t Lie

Speed tests in my home told a clear story. With only Wi-Fi reaching the basement, I clocked download speeds hovering around 35 Mbps. Add in the occasional lag spike and the connection quickly went from unreliable to unusable for anything serious. Streaming 4K content? Buffering. Video calls? Freezing frames and garbled audio.

After setting up MoCA, the transformation was immediate. The same basement computer, running through the coax line via a pair of bonded MoCA 2.5 adapters, hit sustained speeds of 940 Mbps. Latency dropped to single-digit milliseconds. The network suddenly felt hard-wired—because, in a practical sense, it was.

Reliability and Interference: Stability Without Compromise

Wi-Fi performance varies based on dozens of factors—walls, distance, interference from neighbors, even microwave use. In contrast, MoCA keeps communication within the shielded coaxial lines already installed inside the home's infrastructure.

The line stayed clean and consistent 24/7, regardless of network traffic elsewhere in the house. Wi-Fi might survive under favorable conditions, but MoCA thrives under any.

What Truly Matters in Day-to-Day Use

If raw download numbers are one thing, real-world experience tells the rest of the story. Online gaming now runs without lag, with ping stabilizing around 5-8ms. Large file transfers between machines finish in seconds, not minutes. And unlike with Wi-Fi, the connection holds steady during peak evening hours when everyone is streaming, downloading, and syncing at once.

So ask this—what’s your network doing when you really need it? That’s where MoCA delivers the answers Wi-Fi can’t match.

Why MoCA is the Best Retrofit Networking Solution

In retrofit scenarios, especially in homes built well before the explosion of internet-connected devices, MoCA offers a high-performance, low-effort way to upgrade without destruction. It sidesteps the mess and cost of traditional Ethernet installs and uses what's already in your walls—coaxial cable.

MoCA Turns Existing Wiring into High-Speed Backbone

MoCA nodes use in-wall coaxial cable—originally installed for cable TV—to carry Ethernet signals. These cables are already shielded, already run through the most optimal paths in your home, and usually terminate in the exact places where stable connectivity is most needed: behind TVs, in living rooms, near desks, and in media centers.

Retrofit Without Compromise

Single-floor ranch homes, multi-story colonials, mid-century townhomes—whatever the architecture, coax is often already threaded through your walls. That makes MoCA uniquely suited for retrofitting in homes built before Ethernet became commonplace, especially those from the 1970s through the early 2000s.

Beyond old construction, MoCA shines in smart home deployments. When reliability is non-negotiable—for security systems, voice assistants, or streaming cameras—Wi-Fi traffic congestion just doesn't cut it. MoCA creates a wired backbone without excavating your house.

Think about your situation: What’s more efficient—pulling Cat6 through insulated walls and fire blocks, or repurposing decades-old coax runs that already reach every major room in the house?

Making MoCA Work: Tips for Seamless Deployment

Once the decision to go with MoCA is made, optimizing the setup becomes the next priority. A well-deployed MoCA network behaves just like a conventional wired Ethernet line—low latency, high throughput, rock-solid reliability. But a few key practices separate a flawless install from one that's riddled with signal loss and headaches.

Upgrade to MoCA 2.5 or Higher

Start with the hardware. MoCA 2.5 supports up to 2.5 Gbps of real-world throughput, and it's full-duplex. This means symmetrical up and down speeds, virtually perfect for high-demand streaming, gaming, and large file transfers. Don't settle for older MoCA 1.1 or 2.0 units. Those cap out at much lower speeds and can't handle multiple concurrent demanding devices. For context, MoCA 2.0 tops out at 500 Mbps (real-world) and lacks the power-saving and network management features of 2.5.

Kill the Signal Killers: Fix Amplifiers and Splitters

Compatibility matters more than brand names in coaxial networks. Some older amplifiers block MoCA frequency bands, particularly 1125–1675 MHz. If a splitter or amp doesn’t support MoCA, it becomes a dead zone. To test, remove all splitters temporarily and connect the adapters point-to-point. If link speeds jump, the culprit lies in one of those components.

Install a Point-of-Entry (PoE) Filter Where It Counts

Think of the PoE filter as a wall for your coax network. Installed where the coax enters the building, it confines MoCA signals inside and protects your network from interference. This also prevents MoCA signals from leaking to neighbors in multi-dwelling units. Bonus: it enhances performance by reducing noise from external sources. The correct placement is always before the first splitter on the incoming line.

Don’t Skimp on Cable Management

Loose, kinked, or poorly terminated coax reduces signal quality. Sharp bends introduce impedance mismatches, and poorly crimped F-connectors reflect the signal backward—ruining throughput. Keep runs under 100 feet where possible, use RG6 coax, and avoid unnecessary splitters. Neat cable routing also makes future troubleshooting effortless.

Run the cables clean, label each point of connection, and group cables logically using mounts or sleeves. It won't just perform better—it’ll look better too.

When done right, a home MoCA deployment disappears into the background—silent, invisible, and fast. Silent infrastructure doing heavy lifting without a single hole drilled in drywall. Isn’t that the dream?

The Future-Proof Way to Wire Your Home Without Running Cables

Running Cat6 through walls is painful—not just physically, but financially and logistically. Drilling, fishing, anchoring, patching, repainting—each step adds complexity, even for experienced DIYers. While Ethernet offers unmatched stability and speed, the installation rarely justifies the effort in homes that weren’t designed for structured wiring.

That’s the problem MoCA solves. It delivers high-performance Ethernet over coaxial cables you already have in the walls. No need to carve paths behind drywall or crawl through insulated attics. Just tap into the existing coax infrastructure with a pair of MoCA adapters, and the network flows like you ran brand-new Cat6.

It’s a different way of thinking about home networking. Instead of choosing between Ethernet and Wi-Fi, MoCA introduces a third lane—one that bridges speed and convenience. And unlike Powerline or mesh systems, the performance doesn’t degrade room to room. Latency remains low, throughput stays consistent, and devices behave as if they’re hardwired to your router. Even older coax lines, originally laid for cable TV, can exceed 1 Gbps using MoCA 2.5 technology.

Looking ahead, the applications only expand. Smart TVs, security cameras, streaming boxes, and even whole-home automation hubs benefit from rock-solid backhaul connections. A MoCA backbone makes this possible without ever touching a stud finder or drywall saw.

🔌 Thinking about upgrading your home network? Check if your house has coax lines first—MoCA might save you time, money, and drywall repair.

📢 Share your home networking saga in the comments. Did MoCA save you too?