The SamFW Tool is a popular utility among Samsung users for bypassing FRP, flashing firmware, and managing Samsung smartphones. However, one of the most frustrating issues users face is the “No Internet Connection” error, even when the internet is working fine on the PC. This guide provides a step-by-step 100% working solution to resolve this problem and get the SamFW Tool functioning properly.
Why Does SamFW Tool Show “No Internet Connection”?
Even with a stable connection, the tool might fail to connect to its servers due to:
- Firewall or antivirus blocking the tool
- DNS issues on your PC
- Incorrect system date and time
- Software bugs or outdated versions
- Corrupt configuration files
Let’s walk through each solution one by one.
Step 1: Check and Adjust Your System Date & Time
Why It Matters:
Incorrect date/time settings can cause SSL certificate verification errors, preventing the tool from establishing a secure connection.
How to Fix:
- Right-click on the time in your taskbar and select “Adjust date/time”.
- Enable “Set time automatically” and “Set time zone automatically”.
- Restart your computer.
Step 2: Temporarily Disable Antivirus or Windows Defender
Why It Matters:
Security software may block the SamFW Tool from accessing the internet, mistakenly marking it as a threat.
How to Fix:
- Go to Settings > Update & Security > Windows Security > Virus & threat protection.
- Click “Manage settings” under Virus & threat protection settings.
- Turn off Real-time protection temporarily.
- Add an exception for the SamFW Tool folder in antivirus settings.
Important: Re-enable protection after confirming the tool works.
Step 3: Allow SamFW Tool Through Windows Firewall
How to Fix:
- Go to Control Panel > System and Security > Windows Defender Firewall.
- Click “Allow an app or feature through Windows Defender Firewall.”
- Click “Change settings” and then “Allow another app.”
- Browse to the SamFW Tool
.exefile and add it. - Check both Private and Public checkboxes.
Step 4: Flush DNS Cache
Why It Helps:
Clearing DNS resolves issues related to domain name resolution that might prevent the tool from accessing its servers.
How to Flush DNS:
- Press
Windows + R, typecmd, and press Enter. - In Command Prompt, type: bashCopyEdit
ipconfig /flushdns - Press Enter. You will see a message: “Successfully flushed the DNS Resolver Cache.”
Step 5: Change DNS Settings
Sometimes your ISP’s DNS may not resolve the server of the tool correctly.
How to Set Custom DNS:
- Open Control Panel > Network and Internet > Network and Sharing Center.
- Click on Change adapter settings.
- Right-click your active connection and choose Properties.
- Select Internet Protocol Version 4 (TCP/IPv4) and click Properties.
- Choose “Use the following DNS server addresses” and enter:
- Preferred:
8.8.8.8 - Alternate:
8.8.4.4(Google DNS)
- Preferred:
- Click OK and restart your internet connection.
Step 6: Run SamFW Tool as Administrator
Why It Matters:
Admin privileges are often required for network-related operations.
How to Do It:
- Right-click the SamFW Tool shortcut or
.exefile. - Choose “Run as administrator.”
Step 7: Check for Tool Updates
Why It’s Important:
Older versions may not be compatible with updated server APIs or may have bugs causing connection failure.
How to Update:
- Visit the official SamFW Tool website.
- Download the latest version.
- Uninstall the old version completely before installing the new one.
Step 8: Use a VPN Connection
If the tool is blocked in your country or region, a VPN can bypass restrictions and allow it to connect.
What to Do:
- Install a trusted VPN like ProtonVPN, Windscribe, or TunnelBear.
- Connect to a region like United States or Germany.
- Reopen SamFW Tool and check connectivity.
Step 9: Reinstall the Tool Completely
How to Reinstall:
- Uninstall the tool from Control Panel > Programs and Features.
- Delete leftover files from: mathematicaCopyEdit
C:\Program Files\SamFW Tool\ C:\Users\[YourName]\AppData\Local\SamFW\ - Download and install a fresh copy from the official source.
Step 10: Check Internet Connection Settings in Proxy Configuration
If you are using a proxy, it may block outgoing requests.
How to Disable Proxy:
- Go to Settings > Network & Internet > Proxy.
- Turn off “Use a proxy server” if enabled.
✅ Conclusion
If you’re facing the “No Internet Connection” problem in SamFW Tool, following these detailed steps will almost certainly resolve it. From fixing your DNS and firewall settings to updating the tool or reinstalling it, each step is proven to help users restore full functionality. Don’t skip any steps for best results.
