How to run an Ethernet cable through a wall safely

Complete guide with multiple methods and troubleshooting for running Ethernet cables through walls.

7-10 min read
Expert Verified
Last Updated: August 2025

Quick Answer

Running an Ethernet cable through a wall safely involves careful planning, the right tools, and adherence to local building codes. This guide provides detailed methods to accomplish this task while ensuring safety and functionality.

Medium⏱ 7-10 min read

Prerequisites & Requirements

Before starting, ensure you have the following:
  • •Ethernet cable (Cat5e, Cat6, or higher depending on your needs)
  • •Wall plates with keystone jacks
  • •Drill with a drill bit suitable for your wall type
  • •Fish tape or cable puller
  • •Stud finder
  • •Measuring tape
  • •Level
  • •Screwdriver
  • •Safety goggles and gloves

Method 1: Direct Wall Installation

This method is ideal for running Ethernet cables directly through drywall or other wall types without additional conduits.
  • •Step 1: Use a stud finder to locate studs and mark the desired entry and exit points on the wall.
  • •Step 2: Measure the distance between the two points and mark a straight line to guide your drilling.
  • •Step 3: Drill a hole at both marked points using a drill bit that matches the diameter of your Ethernet cable.
  • •Step 4: Insert a wall plate at both ends and secure it with screws.
  • •Step 5: Use fish tape to pull the Ethernet cable through the wall from one plate to the other.
  • •Step 6: Connect the cable to the keystone jacks in the wall plates and secure them.
  • •Step 7: Verify the connection by plugging in a device and checking for internet access.

For Windows 11

After installation, check your network settings:
  • •Open Settings by pressing Windows + I.
  • •Go to Network & Internet > Status to verify the connection.

For Windows 10

Check your network settings:
  • •Right-click the network icon in the taskbar and select 'Open Network & Internet settings'.
  • •Go to Status to confirm the Ethernet connection.

Method 2: Using Conduit

This method is preferred for installations that require additional protection for the cable or when running through multiple walls.
  • •Step 1: Plan the route and mark entry and exit points.
  • •Step 2: Cut the conduit to the required lengths and secure it to the wall using brackets.
  • •Step 3: Drill holes at the entry and exit points of the conduit.
  • •Step 4: Pull the Ethernet cable through the conduit using fish tape.
  • •Step 5: Install wall plates at both ends and connect the cable to the keystone jacks.
  • •Step 6: Verify the connection by plugging in a device.

Troubleshooting Common Issues

If you encounter problems during installation or after connecting, consider the following solutions:
  • •Error: No internet connection - Solution: Check if the cable is properly connected to the router and devices.
  • •Issue: Cable is too short - Fix: Use an Ethernet coupler to extend the length or purchase a longer cable.
  • •Problem: Signal loss - Workaround: Ensure the cable is not running parallel to electrical wiring to avoid interference.

Advanced Tips & Shortcuts

Enhance your installation process with these expert tips:
  • •Keyboard shortcut: Ctrl + Shift + Esc - Opens Task Manager to check network activity.
  • •Command line: ipconfig /all - Displays all network configurations for troubleshooting.
  • •Hidden feature: Ethernet diagnostics in Windows - Access via Settings > Network & Internet > Status > Network troubleshooter.

Common Mistakes to Avoid

Avoid these common pitfalls:

Expert Tips

For a professional finish, consider hiring a licensed electrician for complex installations.