Switching from a wireless to a cable connection is often the only way to ensure stable operation of demanding applications or gaming consoles. Many users face a situation where wireless signal Data packets are lost due to interference in apartment buildings, and the solution lies in the physical connection.
In this article, we will discuss not only the mechanical connection of the cable, but also software settings that will force your device or router to prioritize Ethernet connection. Understanding your home network architecture helps you avoid IP address conflicts and double NAT.
It's worth noting that the term "switching" can refer to two different scenarios: switching the router itself to bridge mode or setting the priority on the computer. We'll cover both options so you can choose the one that best suits your infrastructure.
Physical connection and port testing
The first step is always physically connecting the equipment. You need to make sure the cable UTP Cat5e The network adapter (or higher) is working properly, and the connectors are securely seated in their sockets. The indicator on the computer's network card should light orange or green immediately after the cable is inserted.
If you plan to use the router as an access point (switch), connect the cable from the main modem to the port LAN, and not the WAN, unless the device is set to a special operating mode. In a standard configuration, the WAN port is intended exclusively for receiving a signal from the ISP.
Pay attention to the connection speed reported by your operating system. Modern gigabit networks require four pairs of wires in the cable, while older 100 Mbps standards work on two pairs. If the speed is limited to 100 Mbps with a gigabit plan, the problem may be the quality of the cable.
- 🔌 Check the tightness of the RJ-45 connector until you hear a distinctive click.
- 👀 Make sure the port lights are flashing to indicate data transfer.
- 📏 Use cables no longer than 100 meters to maintain signal quality.
Once physically connected, the system usually automatically detects the presence of a wired network. However, if this doesn't happen, you may need to manually enable the network adapter in Device Manager.
Setting interface priorities in Windows
The Windows operating system has an interface metrics mechanism that determines which channel to use for internet access when connected simultaneously. By default, the system often prefers Wi-Fi because of its portability, ignoring the faster cable.
To change the priority, you need to open the properties of the active connection and go to the protocol settings TCP/IPv4Here you need to uncheck the automatic metric and manually enter a value, for example, 10 for Ethernet and 20 for Wi-Fi. A lower number means a higher priority.
⚠️ Warning: Changing the metric may result in loss of access to local resources if routing is configured incorrectly. Record the original values before making changes.
An alternative method is to temporarily disable the wireless adapter through the Network Control Panel. This will redirect all traffic through the cable, eliminating any background switching. This method is especially useful when downloading large amounts of data.
Router Configuration: Access Point Mode
If your goal is to turn the second router into a wired switch by expanding the number of ports, you need to change its operating mode. In the administrator interface, accessible at 192.168.0.1 or 192.168.1.1, you should find the section “Operating mode”.
Select the "Access Point" or "Bridge" option. In this mode, the device stops acting as a router (distributing IP addresses via DHCP) and simply broadcasts the network from the main router. All devices connected to it will be on the same subnet.
It's important to connect the cable correctly after changing the mode. In most modern models, the cable from the main router can be plugged into any port, including the WAN port, as it will be reassigned software-defined. However, in older models, it may be necessary to connect strictly in LAN port.
☑️ Setting up access point mode
After rebooting, the router will receive a new IP address from the main device. For further management, you will need to know this new address, as the old one will stop responding. Use the manufacturer's dedicated utilities to find the device on the network.
Comparison of connection technologies
Understanding the differences between technologies helps you choose the optimal use case. A wired connection provides minimal latency (ping), which is critical for online gaming and video conferencing. Wireless connections offer convenience but sacrifice stability.
| Parameter | Wired (Ethernet) | Wireless (Wi-Fi) |
|---|---|---|
| Stability | High (99.9%) | Average (depending on interference) |
| Latency (Ping) | 1-3 ms | 10-50 ms |
| Speed | Up to 10 Gbps | Up to 2-3 Gbps (theoretically) |
| Security | Requires physical access | Requires WPA3 encryption |
As can be seen from the table, for stationary devices such as Smart TV, gaming consoles and desktop computers, using a cable is the only choice for achieving maximum performance.
Modern standards Wi-Fi 6 And Wi-Fi 6E have significantly improved the situation, but they cannot completely eliminate the physical limitations of radio waves, such as reflection from mirrors or absorption by water (aquariums, walls).
Why is cable better for streaming?
Streaming 4K HDR video requires consistently high bandwidth. Wi-Fi is prone to micro-breaks, which are unnoticeable when surfing the web but cause video buffering. A cable guarantees a continuous data stream without bitrate fluctuations.
Troubleshooting DHCP and IP Addresses
A common problem when two interfaces are simultaneously active is addressing conflicts. If both adapters receive addresses from different DHCP servers, the system may become confused about where to send requests. In this case, static IP assignments can help.
Go to the network connection properties and select the protocol IPv4Manually enter the IP address corresponding to your subnet (e.g., 192.168.1.50), mask 255.255.255.0, and gateway (router address). This will prevent incorrect settings from being received from the wrong source.
It's also worth checking the DNS server order. For a wired connection, it's best to use reliable public DNS servers, such as Google's (8.8.8.8) or Cloudflare (1.1.1.1). This will speed up website opening and improve security.
⚠️ Note: Router firmware and operating system interfaces may differ. The location of menu items depends on the software version and device model.
If you're using complex setups with multiple routers, ensure that the management addresses of the devices don't overlap. For example, if the main router has an address of 192.168.0.1, the second router should be renamed to 192.168.0.2 before connecting to the network.
Optimizing network drivers
The performance of a wired network directly depends on the network card drivers installed. Standard Windows drivers may not support all the features of your network card. network controller, such as energy saving or Jumbo Frames.
We recommend visiting the motherboard or laptop manufacturer's website and downloading the latest driver. You can disable the power-saving feature in the driver's properties in Device Manager to prevent the port from shutting down to conserve power, which sometimes causes connection interruptions.
In the "Advanced" section of the adapter properties, look at the "Speed & Duplex" parameter. Set the value Auto Negotiation or force select 1.0 Gbps Full DuplexIf you're confident in the quality of your cable and equipment, this will prevent speed drops to 100 Mbps.
Frequently Asked Questions (FAQ)
Should I turn off Wi-Fi on my router if I have a cable connected?
No, turning off Wi-Fi is not necessary. Devices with a wired connection will use it automatically due to the higher interface metric. However, if you want to reduce electromagnetic radiation, you can disable the radio module in the settings.
Why doesn't the computer see the network after connecting the cable?
Check the port indicators. If they are not lit, the cable or port may be damaged. Also, make sure the system isn't configured to block connections or to assign a static IP address from a different subnet.
Is it possible to use one cable for internet and television?
Yes, modern routers allow traffic separation. However, IPTV often requires configuring an IGMP proxy or allocating a separate port in the router settings to ensure multicast traffic is transmitted correctly.
Does cable length affect internet speed?
For Category 5e and 6 twisted pair cable, the maximum segment length is 100 meters. Within this length, speed loss is imperceptible. Exceeding this length will result in signal degradation and a drop in speed to 100 Mbps or loss of connection.