Resolving the “Your Connection Is Not Private” Issue: A Personal Experience

Hello everyone,

As someone who has been working in tech support for nearly three years, I thought I had seen it all—until I encountered a perplexing issue that left me completely stumped. While using an Ethernet connection on my computer, I consistently run into an error message stating, “Your connection is not private,” regardless of the website I attempt to visit. This is the specific message I receive:

“Your connection is not private. Attackers might be trying to steal your information from (for example, passwords, messages, or credit cards). Learn more. NET::ERR_CERT_COMMON_NAME_INVALID.”

This issue stands in stark contrast to my Wi-Fi connection, which continues to function without any problems.

To troubleshoot this dilemma, I undertook a series of measures, which included:

• Ensuring the date and time on my system are correct
• Clearing my cache and cookies, and trying in Incognito mode
• Testing on different web browsers
• Performing a Winsock reset and DNS flush
• Restarting my router and switching Ethernet ports (since my PC is the only one connected via Ethernet)
• Manually configuring my IP and DNS settings
• Checking my proxy settings
• Clearing the SSL state
• Reinstalling network drivers
• Attempting to launch Chrome with the “-ignore-certificate-errors” option
• Disabling antivirus software and Windows Defender

My computer is directly connected to the router via Ethernet, and its specifications are as follows:

• Motherboard: Asus B450-F Gaming
• CPU: Ryzen 2700x
• Operating System: Windows 10 x64 (version 1809)
• GPU: Gigabyte RTX 2080

Despite my extensive troubleshooting efforts, the issue persisted, leaving me seeking solutions from the community.

Update: Resolution
After some deep diving and a bit of experimentation, I found a solution! I managed to resolve the issue by flashing my router to the latest firmware and resetting it to factory defaults.

If you’re encountering a similar problem, I hope my experience guides you toward a resolution. Feel free to share your own tips or insights in the comments below!