Many users, when setting up a home internet connection for the first time, wonder: what is the name of the device that connects computers to a Wi-Fi network? The answer isn't as straightforward as it might seem at first glance, as the modern networking equipment market offers a variety of gadgets with similar functionality. Most often, we're talking about wireless router, which in everyday life is usually simply called a router.
However, if we delve into the technical details, other components can be used to create a full-fledged local network, such as access points or switchesUnderstanding the differences between these devices is critical to choosing the right equipment that will ensure stable connectivity throughout your home or office.
In this article, we'll take a detailed look at the specific devices responsible for creating a wireless network, how they work, and how they differ from each other. You'll learn why you'll most likely need a router, and when it might be worth considering purchasing additional equipment.
Prime candidate: wireless router
When people talk about what connects computers into a network, in 90% of cases they mean wireless routerThis is a multifunctional device that not only distributes Wi-Fi but also manages data flows between the local network and the global internet. The router assigns IP addresses to your devices, ensures connection security, and distributes traffic.
Modern models such as Keenetic or Asus, equipped with powerful processors and antennas, allowing them to serve dozens of devices simultaneously without sacrificing speed. It's important to understand that a router operates at the network layer (layer 3 of the OSI model), making it the "intelligent" hub of your home infrastructure.
Key features of the router include:
- 📡 Wireless signal distribution according to 802.11ac/ax standards.
- 🛡️ Built-in firewall and protection from unauthorized access.
- 🔌 Switching wired devices via LAN ports.
- 🌐 Organizing VPN connections and guest networks.
⚠️ Attention: Don't confuse a router with a simple modem. A modem only converts the provider's signal, but it can't create a full-fledged network for multiple devices without routing functionality.
Access Point: Extending the Boundaries of Your Network
If your question is "what is the name of the device that allows you to connect computers into a Wi-Fi network" in an existing wired infrastructure, then the answer may be access point (Access Point). Unlike a router, it doesn't create a new network, but rather extends the coverage of an existing one by connecting to the main router via cable.
Access points are often used in offices or large homes where a single router isn't enough to cover all rooms. They transparently transmit traffic, allowing devices to move between coverage areas without losing connection if configured. roaming.
Devices from brands such as Ubiquiti or MikroTik, are often used to create professional networks. They allow for centralized management of multiple locations, ensuring a unified security policy and load balancing.
What is the difference between client mode and access point mode?
In access point mode, the device distributes Wi-Fi while receiving internet via a cable. In client mode (client bridge), the device, conversely, receives Wi-Fi and distributes it via a cable, which is useful for connecting desktop PCs that don't have their own Wi-Fi card.
Switches and Commutators: A Wired Foundation
Although the topic of our article is about Wi-Fi, we cannot ignore the device called switch (or switch). This is what physically connects computers into a local area network (LAN) via an Ethernet cable. If your router runs out of LAN ports, a switch can help by increasing their number.
Modern managed switches VLANs allow network segmentation by creating VLANs, which improves security and performance. Although they don't distribute Wi-Fi themselves, without them, building a large wireless network with multiple access points would be impossible.
Main characteristics of switches:
- 🔌 Number of ports (from 5 to 48 or more).
- ⚡ Supports speeds of 1 Gbps, 2.5 Gbps or 10 Gbps.
- 🔋 Availability of PoE technology to power access points.
- ⚙️ Ability to configure VLANs and prioritize traffic.
For home use, unmanaged switches operating on the "plug-and-play" principle are most often used. They simply transmit data packets between connected devices without interfering with the network's logic.
Comparison of device characteristics
To fully understand which device is right for you, it's worth comparing their key features. Users often buy expensive equipment without realizing that a simpler and cheaper solution could solve their needs, or vice versa.
| Characteristic | Router | Access point | Switch (Switch) |
|---|---|---|---|
| Main function | Networking and routing | Expanding Wi-Fi coverage | Connecting devices via cable |
| IP Distribution (DHCP) | Yes | No (usually) | No |
| Working with Wi-Fi | Yes | Yes | No (wire only) |
| Protection (NAT/Firewall) | Eat | Limited | Absent |
Selecting equipment for home and office
When choosing a device to connect your computers, it's important to consider the size of the room and the number of users. For a one-room apartment, a standard one will be sufficient. dual-band router with 5 GHz support.
For a country house or office, it's a good idea to plan the network in advance. This may require a combination of a router, a PoE switch, and several access points mounted on the ceiling. This approach ensures a stable signal throughout the building.
Please note the security standards. This is an outdated protocol. WEP or WPA no longer provides reliable protection. Make sure your equipment supports WPA3 or at least WPA2-AES.
⚠️ Attention: Settings interfaces and menu names may vary depending on your router's firmware version. Always consult the manufacturer's official documentation before changing critical settings.
Network setup and optimization
Once you've decided on the device you need and purchased it, the setup phase begins. First, you need to connect to the router's administrative panel. This is usually done through a browser using the address printed on the sticker on the bottom of the router.
In the settings menu, change the default administrator password, configure the internet connection type (PPPoE, DHCP, Static IP), and configure the wireless network settings. Pay particular attention to the Wi-Fi channel selection to avoid interference from neighboring networks.
☑️ Basic network setup
Advanced users can configure a guest portal, parental controls, and traffic prioritization (QoS). These features make network usage more comfortable and secure for everyone in the family.
Common problems and their solutions
Even a properly selected device can experience instability due to external factors. A common problem is router overheating, especially if it's located in a closed area or exposed to direct sunlight. In such cases, the device may reboot or lose data packets.
Another common problem is "dead zones," where the Wi-Fi signal doesn't reach. A solution might be to change the router's location (in the center of the apartment, at a height of about 2 meters) or install a repeater. However, a repeater cuts the speed in half, so it's better to use a wired connection for access points.
If you notice your device constantly requires a reboot, check for firmware updates. Manufacturers regularly release patches that fix security issues and improve stability.
Can I use my old router as an access point?
Yes, most modern routers support "Access Point" mode in their settings. To do this, connect their LAN ports with a cable and disable the DHCP server on the second device.
Does the number of antennas affect Wi-Fi speed?
The number of antennas indirectly affects speed and stability. More antennas mean better MIMO technology, allowing for more data to be transmitted simultaneously. However, powerful antennas are more important than their number.
Do I need a separate modem if I have a router?
It depends on the connection type. For fiber optic (PON), an ONT terminal is often required. For ADSL, an ADSL modem is needed. If the provider installs a regular Ethernet cable into the apartment, a modem is not needed; a router is sufficient.
How often should you change your router?
The average lifespan of a router is 5-7 years. It's worth replacing it if it no longer supports new security standards, can't handle your data plan's speed, or frequently freezes.