If your current Wi-Fi works for your usual video calls, streaming, or work, you may not need another LAN cable. If you want to try a wired connection, check the ports and cable route first. Choosing by length alone can leave you with a connector that does not fit, a cable that cannot reach, or a route that blocks a walkway.
This guide explains how to check your devices, the installation location, and the cable length when considering a wired connection to internet equipment provided with a rental. Equipment and permission vary by property. Ask the property manager or service provider when a condition is unclear.
1. Check for LAN ports on both devices
First, check the computer or game console you want to connect and the provided router or other network equipment. A common LAN cable has a rectangular RJ-45 connector at each end. Check the device manual or manufacturer specification to see whether it has a matching LAN port. A device with only a USB-C port cannot accept the cable directly. Check the device maker’s instructions before choosing an adapter.
Next, find out which LAN port you are allowed to use. A LAN jack on the wall is not necessarily connected to an internet service. If the provided equipment or wall jack is shared building equipment, ask the property manager or service provider which ports and settings tenants may use. If you do not know what a port is for, wait for an answer instead of trying different ports.
| Where to check | What to verify |
|---|---|
| Computer or game console | Whether it has a LAN port and which connection method it supports |
| Router or wall jack | Which port is available and whether tenants may connect equipment |
| Manual or official specification | Connector type, required adapters, and device-specific limits |
2. Decide where the devices will sit
Choose where you will use the wired device. If the router is nearby and a short route can connect it safely, you do not need a long cable. If the router and device are in different rooms, include the path between them.
Before moving a provided router, attaching anything to a wall, or routing a cable behind furniture, check the property instructions and ask the manager if needed. Do not change shared equipment or network settings yourself. If the router cannot be moved, check whether a safe route from its current location is available.
3. Measure along the cable route
Use a tape measure or a piece of string to measure the route from the port to the device. A straight line across a room is not enough. Include turns around furniture and a little slack for plugging and unplugging the cable. The amount of slack depends on the room and device placement, so try the route with string before choosing a length.
| Part of the route | Check before buying |
|---|---|
| Along furniture or a wall | Whether the string reaches around each turn |
| Near a door or walkway | Whether the cable could be pinched, tripped over, or obstruct passage |
| Under a floor mat or furniture | Whether the cable would be crushed or sharply bent |
| Shared space or a drilled hole | Whether the property manager has approved it; do not proceed if permission is unclear |
A cable left in a loose coil on the floor can become a trip hazard or get in the way of cleaning. A cable pulled tight can put stress on the connector and cable. Choose a length that fits the measured route and keep excess cable out of walkways.
4. Choose the length and category
ELECOM’s guide explains how to choose cable length for a room layout and describes the characteristics of solid-core and stranded cables. If flexibility matters, check the product specification for cable flexibility and conductor type. A category label such as “Cat6A” alone does not determine your internet speed. The devices, service, and settings also matter.
For example, if your measured route is about 3 m, both devices have RJ-45 ports, and you have permission to connect them, you can check the specifications of ELECOM’s flexible Cat6A cable, model LD-GPAY/BU3 (the cable length is approximately 3 m, excluding the connectors). This is only an example if the measured route can be covered without pulling the cable tight. If you need a different length or the connectors do not fit, check another cable or device. Before ordering, confirm the model, length, connectors, current price, stock, shipping, and return terms on the product page.
Check current terms on the Rakuten Ichiba listing for ELECOM LD-GPAY/BU3, 3 m. Price, stock, shipping, and return terms can change. Choose it only after checking that the model and length fit your measured route.
When you can skip the purchase or should wait
Do not buy the cable yet if any of these applies:
- Your current Wi-Fi works for your usual places and needs.
- You cannot identify a LAN port you are allowed to use, or do not know the conditions of the provided internet service.
- You have not confirmed the port on your device or the adapter it needs.
- The route would cross a walkway, pass through shared space, or be pinched by a door.
- You would need to drill a hole, attach something to a wall, or move furniture, and you have not confirmed permission.
- You have not measured the cable route and length.
If the current setup works, keep using it. If the port, permission, or length is unclear, ask the property manager, service provider, or device maker before ordering. You do not need to force a cable through a route that is not safe.
