October 22, 2026
Wi-Fi speeds vs. advertised speeds: What the difference means for your home network
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Your internet service typically comes with a speed number, usually listed as “up to” a certain capacity of megabits-per-second (Mbps) or gigabits-per-second (Gbps). That “up to” is important: it means the speed advertised for your plan and the speed you experience over Wi-Fi can be two different things. Understanding what’s behind that gap—and how to close it—can help you get the most out of the connection you're paying for.
Why advertised and real speeds differ
Advertised speeds represent the maximum speed an internet service provider (ISP) says it can deliver to your home’s connection point, such as your router or wired connection. That's the part of the network the ISP controls.
The moment that signal goes wireless, like from the router to a device, other factors can impact the speed you get. According to physics, all Wi-Fi signals lose strength as they travel through the air and encounter obstructions and other signals. It's normal for real-world Wi-Fi speeds to be below the wired maximum.
The Federal Communications Commission now requires ISPs to disclose more accurate speed numbers, including "typical" wired speed, defined as what a customer can expect at least 80% of the time during peak evening hours. Checking these numbers can help give you a more accurate sense of what your internet speeds will be like in practice before factoring in Wi-Fi and individual device performance. View gFiber’s broadband label here.
What's actually slowing down your speeds?
A few factors account for the gap between the advertised speed and the speed you experience.
Wi-Fi interference
Wireless signals fade across distance, whether traveling through physical objects or through crowded airspace. Walls, floors, and appliances degrade signal strength before it reaches rooms away from the router. Electronics such as Bluetooth devices and microwaves can interfere with Wi-Fi on the same frequency, and nearby routers in your neighborhood can compete for bandwidth on the same channels.
Every obstacle, visible and invisible, that stands between the router and your device means speed reduced from your wired maximum. This is a normal part of how Wi-Fi works.
Device limitations
Your internet is only as fast as your router and the devices receiving the signal. Every device has a Wi-Fi standard or "generation" built into its hardware (Wi-Fi 6, Wi-Fi 6E, Wi-Fi 7, etc.), and that generation sets a hard speed ceiling. An older phone or laptop simply can't process faster connections, no matter how good the signal reaching it is. It's the same idea as an older phone not supporting 5G cellular: the network is there, but if your phone isn’t compatible, it can’t tap into it.
Internet delivery type
Not all ISPs deliver on their promised speeds equally, even before Wi-Fi comes into play.
A 2026 provider analysis of 12 major ISPs found that fiber connections deliver 95% of advertised speed on average, compared to 82% for cable and just 71% for DSL.
Cable customers on a typical shared neighborhood node split a fixed amount of bandwidth with many nearby households, so speeds can dip at peak times when everyone is competing to use the internet at once across that shared loop. According to a broadband technology overview from The Pew Charitable Trusts, “The most important characteristic of DSL is that its data speed decreases as the distance increases: The farther a signal must travel, the slower it will be, and as a result, DSL speeds differ throughout a community and even within a neighborhood.” DSL's speed depends on how far a home sits from the provider's central office, so it can get slower the farther out you live.
gFiber’s 100% fiber-to-the-home (FTTH) network isn't subject to either problem. According to IEEE, fiber-optic signal doesn't degrade significantly with distance the way copper does, “because light experiences far less attenuation than electrical signals over long distances and is immune to electromagnetic interference, fiber optic cables support data rates and reach that copper cabling cannot match." Furthermore, each home's traffic is kept separate on the fiber network and when it comes to bandwidth, the dedicated fiber technology is built to handle high amounts of data. And because lines connect directly to individual homes rather than a crowded neighborhood loop, bandwidth is uninterrupted, even at peak times.. In fact, the FCC's most recent Measuring Broadband America report found that 85% of fiber subscribers experience average download speeds even higher than advertised.
For more information, read our guide on connection types.
Check what speed you’re really getting
Run these simple tests to determine what internet speed you’re actually getting to your devices.
Test your wired connection. Connect a laptop directly to your router with an Ethernet cable and run a speed test with one click. This tells you what's actually being delivered to your home, without any Wi-Fi variables.
Test your wireless connection where you use it. Run the same test connected to Wi-Fi in the locations you use your devices most, like at your desk. A comparison with the wired results shows the speed difference from your wireless setup.
Test at different times. Try running these tests at different times of day when the internet might be under more strain, like in the evening when the whole household is using the internet, to see if peak usage affects results.
If you find your wired connection matches your plan, but your wireless connection doesn’t, the gap is coming from your home network rather than your ISP.
Ways to close the gap
Here are a few practical ways you can improve your internet performance at home.
Hardwire important devices. Bandwidth-heavy devices, such as desktops and gaming consoles, perform better when connected directly to your router using an Ethernet cable. Hard wiring these devices frees up bandwidth for everything else on Wi-Fi. gFiber’s Home 3 Gig and Edge 8 Gig products offer in-home consultations and hard wiring for up to two eligible high-use areas.*
Use a mesh extender for larger homes or dead zones. All gFiber products include at least one mesh extender, where needed, to extend Wi-Fi coverage throughout the home.
Check that your devices are up-to-date. To see multi-gigabit wireless speeds, you must use a Wi-Fi 7 router paired with a Wi-Fi 7 compatible device, typically phones and laptops released in 2025 or later. If you're not sure what your device supports, you can check its settings, or reference gFiber's device compatibility guide.
See Improve Your gFiber Wi-Fi Speeds for more tips.
The bottom line
Most of the gap between your internet’s advertised speeds and the speeds you actually see comes down to what's happening inside your house.
To make sure you’re getting the most out of your network: Run a speed test to see where you stand. Then open the gFiber App to check your Network Health score and get specific guidance on router placement, extenders, and other adjustments in your home.
Still need help getting the right speed? Contact support.
Disclaimers
*Technicians will determine eligibility for hardwiring up to two workspaces, which will depend on the home's existing, qualified wiring.
Customers canceling service will have to pay a replacement fee (including any applicable taxes) if they fail to return equipment within 60 days after cancellation.