How to Resolve Hamachi Inbound Traffic Blocked Issue

Amanda Gao
4 min readAug 26, 2020

LogMeln Hamachi is a virtual private network (VPN) application which is commonly used by Windows users. Some problems have been reported with it, and the Inbound Traffic block issue is one of them. Commonly, this error appears with the error message “Inbound traffic blocked, check firewall settings”.

According to the report, you may receive it after you reformat your computer or upgrade to a newer Windows version. And this issue might be caused by the following factors:

  • Blocked by Windows Defender Firewall.
  • Included in the list of Protected Networks.
  • Lack of inbound rule in Firewall.
  • Improper Hamachi driver.

Well, here are some workarounds that have helped some users successfully resolve Inbound traffic blocked on Hamachi. If you are struggling with the problem, you can feel free to try them one by one. Without any further ado, let’s see the details.

Fix 1: Allow Hamachi Through Windows Defender Firewall

You are likely to receive the Inbound traffic blocked error message if your Hamachi is blocked by your firewall. If the Hamachi network is trusted, you can go to allow the application through the Windows Defender Firewall in this case. If you don’t know how to do that, just follow the steps below:

Step 3: Click Allow an app or feature through Windows Defender Firewall.

Now, Hamachi has been added to the exception list and you can click OK to save changes. Then, restart your computer and check if Hamachi Inbound traffic blocked issue is fixed.

Fix 2: Exclude Hamachi From Protected Network Connections List

Alternatively, you can also try excluding your Hamachi from the protected network connections list. Here’s a simple guide.

Step 1: Navigate to Windows Defender Firewall interface according to the steps above.

Step 4: Switch to the Public Profile tab and click the Customize button next to Protected network connections.

Step 5: All the protected connections will be listed in the new window. If your Hamachi is among the list, uncheck it and click OK. Then, click Apply and OK to save changes.

Once it’s done, reboot your device and check if the error is fixed.

Fix 3: Create A New Inbound Rule for Hamachi

What’s more, you might also resolve Inbound traffic blocked on Hamachi by creating a new inbound rule for your Hamachi. Here’s how to do that:

Step 1: Open Windows Defender Firewall with Advanced Security window.

Step 3: In the New Inbound Rule Wizard, click Program in the list of Steps. Choose This program path, click Browse button, and locate your Hamachi and select the executable. Click Open to add the path.

Restart your computer, and Hamachi inbound traffic blocked issue should have been resolved.

Fix 4: Reinstall Hamachi Driver Manually

If the Hamachi driver that is used to handle the inbound connection is not installed improperly, there’s a high possibility of inbound traffic blocked issue on your Hamachi. In this case, you can try reinstall your Hamachi driver manually.

Step 4: Click Next button in the welcoming pane. Then, choose Install the hardware that I manually select from a list option and click Next.

Step 6: In the pop-up window, click Browse button to go to the location of your Hamachi, choose the Hamachi.inf file, and click Open.

Finally, restart your computer to check if your Hamachi is free from the inbound traffic blocked issue.

Originally published at https://www.partitionwizard.com on August 26, 2020.

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