Between pixelated video calls, a sluggish corporate VPN, and shared files that take an eternity to sync, the home network becomes the weak link in remote work. The question deserves to be asked from a technical perspective: what parameters really influence the speed and stability of a home connection, and which ones are simply a matter of perceived comfort?
Wi-Fi 4, Wi-Fi 5, Wi-Fi 6 or Wi-Fi 7: what real impact on remote work
Before moving your router or buying a repeater, it is useful to check the Wi-Fi standard used by your router and your computer. Technical guides published since 2024 position Wi-Fi 6 as the minimum recommended standard for HD video conferencing, screen sharing, and corporate VPNs. Older Wi-Fi 4 or Wi-Fi 5 routers become a limiting factor as soon as multiple video streams and collaborative tools are used simultaneously.
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| Wi-Fi Standard | Frequency Band | Suitable for Intensive Remote Work | Note |
|---|---|---|---|
| Wi-Fi 4 (802.11n) | 2.4 GHz / 5 GHz | No | Limited speed, highly sensitive to interference |
| Wi-Fi 5 (802.11ac) | 5 GHz | Acceptable if used alone | Sufficient for a standalone workstation without simultaneous video |
| Wi-Fi 6 / 6E (802.11ax) | 2.4 / 5 / 6 GHz | Yes | Significantly improved multi-device management |
| Wi-Fi 7 (802.11be) | 2.4 / 5 / 6 GHz | Yes | Recent technology, beginning to be available from ISPs |
Arcep recommends prioritizing computers compatible with at least Wi-Fi 5, or even Wi-Fi 6. The router is backward compatible with older standards, which means that the bottleneck often lies on the device side rather than the router side.
Anyone with a Wi-Fi 4 router who works remotely with daily video conferencing quickly realizes the gap. Switching to a Wi-Fi 6 or 6E compatible router improves the simultaneous management of multiple connected devices (work computer, child’s tablet, smartphone) thanks to OFDMA technology that distributes radio resources more granularly.
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2.4 GHz or 5 GHz Band: separating professional and personal uses
Most recent routers broadcast on two frequency bands. This technical detail has a direct impact on network stability during remote work, and it is a lever that can be accessed without any investment. To improve your network with CGI Network, the first step is precisely to understand the difference between these two bands.
Arcep recommends configuring your router to broadcast on 5 GHz for the professional workstation. The 2.4 GHz band is shared by many household devices (Bluetooth, microwaves, baby monitors), which multiplies the risks of interference. By reserving the 5 GHz band for the work computer and switching personal uses to the 2.4 GHz band, you reduce radio contention on the priority flow.
- Access the router’s administration console (usually via 192.168.1.1) to activate both bands separately and assign them distinct network names (SSIDs).
- Connect the work computer only to the 5 GHz SSID, and smartphones, speakers, or tablets to the 2.4 GHz SSID.
- Choose a less crowded channel on each band, using a free Wi-Fi scanner to visualize the channels used by neighbors.
This separation costs nothing and produces a measurable effect on latency during video conferencing, a parameter often more bothersome than raw speed.
Ethernet and Powerline: when Wi-Fi is no longer enough
Wi-Fi remains a radio wave subject to attenuation by walls, floors, and distance. In an apartment or a multi-level house, Ethernet cable remains the most stable connection for a fixed remote work station. Arcep itself recommends reverting to this wired solution whenever the housing configuration allows it.
Running an Ethernet cable between the router and the office is not always feasible. Powerline (CPL) then constitutes an intermediate alternative: the Internet signal travels through the electrical circuit of the home. Results vary depending on the age and quality of the electrical wiring. However, a good recent powerline adapter provides significantly better speed and stability than a traditional Wi-Fi repeater placed too far from the router.
A mesh network represents a third option for large spaces. Multiple Wi-Fi access points communicate with each other and create homogeneous coverage. This type of system is particularly suitable for homes with more than three rooms where the Wi-Fi signal drops significantly between the router and the office.
Home Network Security in Remote Work: the Forgotten Link
The majority of articles on network optimization focus on speed and range. The security of the home Wi-Fi network is often a neglected angle, even though the rise of remote work has led to an increase in attacks targeting employees’ personal networks to access company data.
UFC-Que Choisir now recommends activating WPA3 encryption as soon as the router allows it. This protocol corrects several weaknesses of WPA2 (protection against brute force attacks on the password, individual session encryption). On recent routers from major ISPs, the option is available in the Wi-Fi security settings.
- Check in the router’s administration interface that the encryption mode is set to WPA3 (or WPA2/WPA3 in mixed mode if some older devices do not support WPA3).
- Change the default Wi-Fi password, often printed on the router’s label and therefore accessible to anyone physically nearby.
- Disable WPS (Wi-Fi Protected Setup), a convenient but vulnerable feature that allows connection with a simple push of a button.
- If the employer provides a VPN, use it systematically on the home network to encrypt all professional traffic.
A fast but poorly protected network exposes professional data just as much as a slow network. The combination of WPA3, a strong password, and a corporate VPN covers the three most common attack vectors on a home network used for work.
The parameter that most penalizes daily remote work is often neither the download speed nor the Wi-Fi coverage, but latency and micro-cuts. An Ethernet cable, a dedicated 5 GHz band, and WPA3 encryption form a technical foundation that eliminates the vast majority of irritants, without requiring a change of subscription or heavy investment.