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For Start File Sharing on Windows We Need to Enable UDP Port Rules

We know this type of setup is headache but trust on us - just 10 seconds can unlocks a lifetime of free file sharing with no limits!

Why this setup is needed?

Windows Firewall blocks UDP traffic by default, which is required for WebRTC peer-to-peer connections. In Android, iPhone, and MacOS, these ports are typically open by default.

Step 1: Open Command Prompt as Administrator

  1. Press the Windows key or click Start
  2. Type "cmd"
  3. Right-click on Command Prompt and select Run as administrator
Opening Command Prompt as administrator

Step 2: Run the Command to Enable WebRTC UDP Ports

Copy and paste the following command into Command Prompt:

netsh advfirewall firewall add rule name="WebRTC UDP" dir=in action=allow protocol=UDP localport=3478-3479,49152-65535

If successful, you'll see the message: Ok.

Congratulations! Your Setup Is Complete 🎉, Start File Sharing offlinesharing.com

Step 1: Open Windows Defender Firewall with Advanced Security

  1. Press the Windows key or click Start
  2. Type "Windows Defender Firewall with Advanced Security"
  3. Click on the matching result
How to open Windows Defender Firewall with Advanced Security

Step 2: Create New Inbound Rule

  1. In the left side, click on Inbound Rules
How to find Inbound Rules in Windows Firewall
  1. In the right side, click on New Rule...
Creating new inbound rule in Windows Firewall

Step 3: Select Port Type

  1. Select Port and click Next
Selecting Port type in Windows Firewall

Step 4: Select Protocol and Ports

  1. Choose UDP
  2. Select Specific local ports
  3. Enter port range: 3478-3479,49152-65535
  4. Click Next
Selecting UDP protocol and ports in Windows Firewall

Step 5: Allow the Connection

  1. Select Allow the connection and click Next
Allowing connection in Windows Firewall

Step 6: Set Rule Application

  1. Choose when the rule applies:
    • Domain
    • Private
    • Public
  2. Click Next
Setting rule application in Windows Firewall

Step 7: Name the Rule

  1. Enter name: "WebRTC UDP"
  2. Click Finish
Naming the firewall rule

Congratulations! Your Setup Is Complete 🎉, Start File Sharing offlinesharing.com

Security Reminder

For better security, remember to disable or delete the firewall rule after you're done with file sharing. Leaving unnecessary ports open could potentially create security vulnerabilities.

Method 1: Using Command Prompt

Run Command Prompt as Administrator and use this command:

netsh advfirewall firewall delete rule name="WebRTC UDP"

If successful, you'll see the message: Deleted 1 rule(s).

Method 2: Using GUI

  1. Open Windows Defender Firewall with Advanced Security
  2. Find your rule named "WebRTC UDP" in the Inbound Rules list
  3. Right-click on the rule and select:
    • To temporarily disable: Select Disable Rule
    • To permanently remove: Select Delete
How to disable or delete Windows Firewall rules

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