Many Malwarebytes users occasionally encounter the “Cannot Connect to Server” error. This prevents the software from updating virus definitions, checking subscriptions, or performing scans. Fortunately, this issue is usually easy to fix if you follow the correct steps. This guide explains why the error occurs and provides practical solutions to get Malwarebytes connecting to its servers again.
Common Reasons Malwarebytes Cannot Connect to Server
Understanding the causes helps fix the problem faster:
- Internet Connection Problems – Unstable or restricted connections may block server access.
- Firewall or Antivirus Blocking Malwarebytes – Other security software may prevent Malwarebytes from reaching its servers.
- Outdated Malwarebytes Version – Old versions may not communicate properly with the servers.
- Proxy or VPN Settings – Some network configurations can interfere with server connections.
- Server-Side Issues – Rarely, Malwarebytes servers may experience temporary downtime.
How to Fix Malwarebytes Cannot Connect to Server
Follow these step-by-step solutions to resolve the issue:
1. Check Your Internet Connection
A stable connection is essential for Malwarebytes to reach its servers:
- Test your internet by visiting a website
- Restart your router if the connection is unstable
- Disable mobile hotspots or public Wi-Fi networks and use a reliable network
After confirming connectivity, try opening Malwarebytes again.
2. Run Malwarebytes as Administrator
Permission issues may prevent server connections. To run as administrator:
- Right-click the Malwarebytes shortcut
- Select Run as Administrator
- Try performing updates or scans again
3. Disable Firewall or Antivirus Conflicts
Other security programs may block Malwarebytes:
- Temporarily disable third-party antivirus software
- Disable Windows Defender Firewall or adjust settings to allow Malwarebytes
- Retry connecting to the server
Remember to re-enable your firewall or antivirus after troubleshooting.
4. Update Malwarebytes
Using an outdated version can cause server connection errors:
- Open Malwarebytes → Settings → About → Check for Updates
- Install any available program or database updates
- Restart Malwarebytes and check the server connection
If automatic updates fail, you can also download the latest version manually
5. Check Proxy or VPN Settings
Network configurations can interfere with server communication:
- Disable any VPN or proxy temporarily
- Ensure Malwarebytes is allowed through your network settings
- Retry connecting to the server
6. Clear DNS Cache
Sometimes network issues are caused by cached data:
- Open Command Prompt as Administrator
- Type
ipconfig /flushdnsand press Enter - Restart Malwarebytes and try connecting again
7. Reinstall Malwarebytes
If none of the above fixes work, the installation may be corrupted:
- Uninstall Malwarebytes from your system
- Download the latest version from the official website
- Install and restart your computer
- Attempt to connect to the server again
8. Contact Malwarebytes Support
If the problem persists:
- Submit a ticket with your account details, version, and error description
- Include screenshots for faster assistance
The support team can check if the issue is server-related or specific to your account.
Tips to Prevent Future Server Connection Issues
- Keep Malwarebytes updated at all times
- Avoid using multiple security programs that may conflict
- Ensure a stable and reliable internet connection
- Restart your system occasionally to refresh network settings
Conclusion
The Malwarebytes “Cannot Connect to Server” error is usually caused by network issues, firewall conflicts, outdated software, or VPN/proxy settings. By checking your internet connection, running Malwarebytes as administrator, updating the software, and adjusting network/firewall settings, most users can fix the problem quickly. If the error persists, Malwarebytes support can provide specialized assistance to restore server connectivity and ensure your device stays fully protected.
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