One of the big changes now that I’m no longer renting is that I’ve moved to wired for most of my devices. Before that, the only things that actually had wired connections were my hotspots, which helped but never seemed quite complete.
And there’s a good reason for that. Ethernet isn’t affected by your neighbor’s Wi-Fi signal, but your Wi-Fi absolutely is. Even without interference, latency variations, and varying signal strength, Wi-Fi is already at a significant disadvantage because it still operates half-duplex, unable to send and receive data simultaneously. Ethernet has no such restrictions and appears more consistent because it is not affected by local conditions.
Wi-Fi 7 routers are finally here, but most homes aren’t wired well enough to take advantage of them
Your home probably isn’t ready for Wi-Fi 7, and won’t be for a long time
Wi-Fi seems more variable because it is
Many things can destroy your wireless signal
With wireless connections, you’re at the mercy of interference, airtime, signal strength, and a whole bunch of other things you can’t really change, like the layout of the walls in your house. Questions like “How to improve my Wi-Fi signal” regularly ranks high in Google search results, leading toshows exactly how annoying dealing with wireless signal issues can be.
What makes Wi-Fi valuable is its convenience, but that comes at the cost of its reliability. Wireless signals vary from time to time, and if you’re a heavy internet user, this manifests itself in glitches, inconsistent browsing speed, and slowdowns that don’t match the signal strength meter on your devices.
In some ways, the problem gets worse with mesh networks: even though you may have a strong signal to the nearest node, if the link is wireless you might experience slowdowns on the link that you can’t measure. Backhaul is best when hardwired and can provide the bandwidth the broadcaster needs with consistency.
How your daily life changes
Ethernet makes everything more responsive
The simple answer here is that using Ethernet makes your devices more responsive, because they are. Ethernet is full duplex, which means it can send and receive data at the same time. Wi-Fi is half-duplex, so even under ideal network conditions it’s already at a significant disadvantage. Add in jitter and retransmissions due to missed packets, and you have a litany of small issues that add up to a lack of consistency that you can feel.
This will translate into every action you take on your network. Loading file shares on your NAS will be slower, as will remote desktop sessions. Video calls may have visual issues, with a dropdown to lower resolutions while your network conditions adjust.
These problems do not completely disappear with Ethernet, but they are significantly reduced, or retransmissions occur transparently thanks to the full-duplex configuration, reducing friction. We tend to be more sensitive to perceived changes in speed or responsiveness, and Ethernet is more consistent overall. Wired connections always have the same speed unless there is a serious problem, while Wi-Fi can be variable due to distance, obstacles like walls or furniture, congestion and interference.
Plus, it improves your Wi-Fi
Here’s the thing. Of all the things that can affect your Wi-Fi signal, the best way to free up airtime for wireless-only devices is to hardwire as many things as possible. Even running a cable across two rooms can have an immediate impact, because the devices you tend to connect first are those that use a lot of bandwidth, like desktop computers, televisions, and home lab equipment.
Even a single 4K Netflix stream can make older Wi-Fi versions struggle without buffering, and while newer Wi-Fi standards support more bandwidth, we’ve also equipped our homes with wireless devices to utilize this capacity. Smart home devices are another significant source of slowdowns because they rely on broadcast/multicast traffic for discovery. Moving them to their own SSID makes a bigger difference than you think in the overall responsiveness of your network.
I installed a wired connection in every room of my house, and it was totally worth it
After years of being Wi-Fi, I have now seen the light
Don’t Overlook Wired Networks When Designing Your Home Network
The move to wired devices for Ethernet not only seems more comprehensive; this makes your network noticeably more complete. Wi-Fi works best as a complement to the wired network, leaving airtime open for devices that can’t be connected. This will make your smart home more responsive, and you won’t need to wire every room if you don’t feel the need; even a few cables leading to the rooms where your main computer is located can make a big difference.