Wifi is so unreliable on just my PC. Trouble connecting/going in and out. “Can’t reach DNS server error” “No internet, Secured” error.

Understanding and Resolving Wi-Fi Connection Issues on Your Windows PC: A Comprehensive Guide

Introduction

Experiencing inconsistent Wi-Fi connectivity on your personal computer can be incredibly frustrating, especially when other devices function perfectly on the same network. Common errors such as “Can’t reach DNS server” or “No internet, secured” can disrupt your online experience, whether you’re working, streaming, or browsing. If you’re facing similar issues, this article offers professional insights and step-by-step solutions to help you diagnose and resolve Wi-Fi connectivity problems on your Windows PC.

Identifying the Problem

Inconsistent Wi-Fi connection behavior—where your PC sometimes connects seamlessly and at other times struggles or fails to connect entirely—is often perplexing. If other devices like smartphones or tablets connect without issues, the problem typically lies with the PC itself. Common symptoms include:

• Intermittent Wi-Fi connectivity
• Error messages: “No internet, secured” and “Can’t reach DNS server”
• Fluctuating connection status even after troubleshooting

Preliminary Checks

Before diving into complex solutions, ensure the following:

1. Other Devices Are Connecting Fine: Confirm that your Wi-Fi network is functioning correctly. Since your phone connects without issues, the problem is isolated to the PC.

2. Confirm Network Details:

3. Ensure your Wi-Fi password is correct.
4. Check if your PC is within a good range of the router.

Step-by-Step Troubleshooting

1. Basic Network Reset

Start with the built-in Windows troubleshooting tools:

• Network Troubleshooter:
• Go to Settings > Network & Internet > Status.

• Click on “Network Troubleshooter” and follow the prompts.

• Reset IP Configuration and DNS Cache

Open Command Prompt as an administrator:

• Right-click on Start > Command Prompt (Admin) or Windows Terminal (Admin).

Execute the following commands one by one:

bash
ipconfig /flushdns
netsh int ip reset
netsh winsock reset

After running these commands, restart your PC and check if the connection improves.

1. Update Network Drivers

Outdated or corrupted network drivers can cause connectivity issues:

• Open Device Manager:
• Right-click on Start > Device Manager.
• Expand “Network adapters.”
• Right-click your Wi-Fi adapter and select “Update driver.”
• Choose “Search automatically for updated driver software.”

• If Windows doesn’t find an update, visit your PC or motherboard manufacturer’s website to download the latest drivers manually.

• Reset Network