Problem with two separate Dell Win 10 laptops not connecting to internet

Troubleshooting Connectivity Issues on Multiple Dell Laptops Connecting to Public Wi-Fi Networks

Introduction

Experiencing internet connectivity problems can be frustrating, especially when multiple devices exhibit similar issues. In this article, we explore a common scenario involving Dell Windows 10 laptops unable to connect to the internet despite establishing a connection with the Wi-Fi network. We will examine potential causes and provide step-by-step solutions to resolve such problems effectively.

Scenario Overview

A user reports that their older Dell laptop, used primarily for personal tasks at work, connects to an open Wi-Fi network without requiring a password. The last successful connection was made before powering down the device. Upon returning to the office, the user finds that while the laptop connects to the Wi-Fi router, it cannot access the internet. Notably, other devices such as smartphones and colleagues’ laptops connect to both the Wi-Fi and the internet without issues.

Further attempts to troubleshoot include rebooting the router and the affected laptops, but the problem persists. Interestingly, a colleague’s Dell laptop experiences the same connectivity issue, indicating a broader network or device-specific problem.

Potential Causes

Several factors could contribute to such connectivity issues:

1. Network Configuration Changes: Any recent updates or network modifications might have affected device compatibility.
2. IP Address Conflicts: Duplicate IP addresses or DHCP issues can prevent internet access despite successful Wi-Fi connection.
3. Firewall or Security Settings: Overly restrictive firewall rules may block internet access.
4. Driver or Firmware Issues: Outdated or corrupted network drivers can impede proper connectivity.
5. Network Authentication Problems: Even open networks can sometimes encounter authentication or handshake issues.

Step-by-Step Troubleshooting

1. Verify Network Connectivity

2. Confirm that the Wi-Fi network is functioning correctly with other devices.

3. Check if the network requires any updates or notices from the network administrator.

4. Renew IP Configuration

5. Open Command Prompt with administrative privileges.

6. Run the following commands:

   ipconfig /release
ipconfig /renew

7. This can resolve IP conflicts and refresh network settings.

8. Flush DNS Cache

9. Clear potential DNS resolution issues:

   ipconfig /flushdns

10. Disable and Enable Network Adapter

11. Navigate to Control Panel > Network and Internet > Network and Sharing Center > Change adapter settings.

12. Right-click on the Wi-Fi adapter and select Disable.
    –