🔊Why WiFi Chips on Laptops Give LANs a Bad Rap🎙️

Ronald BartelsRonald Bartels
3 min read

We’ve all heard it before: “The network is slow!” It’s a classic complaint from users, and in most cases, it’s followed by an exasperated IT engineer rolling their eyes because—guess what?—the LAN isn’t to blame. More often than not, the culprit is the WiFi chip on a user’s laptop, which is quietly sabotaging their experience.


The Great WiFi Deception

WiFi is an engineering marvel, but let’s be real—it’s not as reliable as a wired connection. Despite massive advancements in wireless technology, your laptop’s built-in WiFi chipset remains one of the weakest links in the network chain. And when users experience sluggish internet speeds or random disconnections, they instinctively point fingers at the LAN, completely unaware that their own device is betraying them.

The biggest offender? Windows Power Saving Mode.


How Power Saving Mode Turns WiFi into a Tortoise

Windows laptops love to be eco-friendly, so much so that they’ll aggressively throttle power usage—especially when running on battery. One of the first things to get nerfed? The WiFi adapter.

When power-saving kicks in, the laptop starts doing things like:
Reducing the WiFi adapter’s power output (weaker signal)
Switching the adapter to a low-performance mode (slower speeds)
Putting the adapter into sleep mode too aggressively (random disconnects)

To make things worse, Windows won’t tell you that your WiFi is now crawling along at dial-up speeds. You’ll still see full signal bars, but your throughput is tanking in the background.

Result? A sluggish connection that has nothing to do with the network itself.


LAN vs. WiFi – The Brutal Reality

For a moment, let’s compare the actual speeds and reliability of LAN vs. WiFi:

Connection TypeLatencySpeedReliability
Ethernet (Cable)Low (~1ms)High (1Gbps – 10Gbps)Rock solid
WiFi (Good Signal)Medium (~10-20ms)Decent (300Mbps – 1Gbps)Mostly stable
WiFi (Power-Saving Mode)High (~100ms+)Terrible (~10-50Mbps)Unreliable

It’s not even a contest. Plugging in an Ethernet cable is like switching from a donkey cart to a bullet train.


The Fix: Plug It In!

If your laptop is running slow on WiFi, don’t just curse the network. Do this instead:

1️⃣ Plug in an Ethernet cable. Instantly, you’ll bypass the sluggish WiFi chipset and get full-speed connectivity.
2️⃣ Disable power-saving for WiFi.

  • Open Device Manager → Network Adapters → Your WiFi adapter

  • Go to Power Management

  • Uncheck "Allow the computer to turn off this device to save power."
    3️⃣ Use a high-quality external WiFi adapter. Many built-in laptop WiFi chips are cheap and weak. A USB or PCIe adapter can make a big difference.
    4️⃣ Stay close to the access point. Walls, interference, and other WiFi users can degrade your connection.


Wrapping up | Stop Blaming the LAN

Next time someone shouts “The network is slow!” ask them:
“Are you on WiFi or wired?”
“Is your laptop on battery?”
“Did you check power-saving settings?”

Chances are, the network is perfectly fine, and their laptop’s WiFi is just being lazy.

And if they’re still moaning?
Hand them an Ethernet cable. Problem solved. 🎤💥

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Ronald Bartels
Ronald Bartels

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