VPN Connectivity Issues: Cannot Resolve Host Address

Published Categorized as Guide
VPN Connectivity Issues: Cannot Resolve Host Address. Vpn unable to resolve server address
VPN Connectivity Issues: Cannot Resolve Host Address. Vpn unable to resolve server address

Navigating through the digital world, Virtual Private Networks (VPNs) offer a secure pathway. Yet, users sometimes face the dreaded Cannot Resolve Host Address error. This comprehensive guide aims to dismantle this barrier, ensuring uninterrupted VPN service.

Delving Into the “Cannot Resolve Host Address” Error

The heart of this issue beats within a DNS (Domain Name System) problem. This hiccup stops your device from turning the VPN server’s name into an IP address. Imagine trying to dial a friend without knowing their number. VPN applications, especially when connecting to a server, might show messages like “Cannot resolve host address: localhost: nodename nor servname provided, or not known.” This indicates a snag in the server name’s resolution process into IP addresses, crucial for a VPN link.

Initiating the Troubleshooting Process

Restart Your Device

Kicking off our solution journey, restart your device. This simple action can fix many hidden issues by refreshing system connections.

  1. For Mac Users: Click the Apple menu, choose “Restart,” and wait for a complete reboot.

Try Reconnecting to Your VPN

Post-restart, give your VPN another shot:

  1. Open your ForestVPN app.
  2. Pick a server location and connect.

If you encounter the same error, it’s time to dive deeper into DNS configurations.

Adjust DNS Settings

Addressing this issue head-on involves tweaking your device’s DNS settings. This ensures your device can accurately resolve domain names into IP addresses, crucial for VPN connections.

  1. Modifying DNS Settings:
  • Mac users should head to System Preferences > Network, select their connection, and click “Advanced.” The DNS tab is your destination.
  1. Input New DNS Servers:
  • Hit the “+” button to add new DNS servers. Google’s ( and or Cloudflare’s ( servers are solid choices.
  1. Save Your New DNS Settings:
  • Press “OK,” then “Apply” to commit your changes.

Attempt VPN Connection Again

With fresh DNS settings, try connecting to your VPN once more:

  1. Restart your ForestVPN app.
  2. Choose a server and connect.

This approach typically resolves the “Cannot Resolve Host Address” error by ensuring proper domain name resolution.

Ensuring Your VPN Software Is Up-to-Date

An often-overlooked aspect is the importance of keeping your VPN software updated. Developers regularly release updates to enhance functionality and fix bugs. Check for updates in your VPN application or on the provider’s website. Installing the latest version can sometimes resolve connectivity issues instantly.

Checking Your Firewall and Antivirus Settings

Sometimes, firewall or antivirus settings may mistakenly block VPN connections. Verify that your firewall allows VPN connections. Additionally, check if your antivirus has features that might restrict VPN use. Adjusting these settings can provide a clear path for VPN connectivity.

Seeking Immediate Assistance

If the problem remains, do not hesitate to contact us at ForestVPN. We offer specialized advice and solutions tailored to your specific scenario.


While the “Cannot Resolve Host Address” error can be a stumbling block, it’s often surmountable with the right approach. By understanding the DNS issue at its core and methodically applying the solutions provided, seamless VPN connectivity is within reach. Keeping your VPN software updated and ensuring no firewall or antivirus interference are also key steps. Should you face ongoing challenges, remember that the support team of your VPN provider is there to assist.


Q: What causes VPN connectivity issues, specifically the “Cannot Resolve Host Address” error?

A: This error primarily stems from DNS problems, where your device fails to translate the VPN server’s name into an IP address, akin to not knowing a phone number.

Q: How can I fix the “Cannot Resolve Host Address” error on my own?

A: Start by restarting your device. If the issue persists, adjust your DNS settings by adding new DNS server addresses like Google’s ( and or Cloudflare’s ( Ensure your VPN software is up-to-date, and check firewall and antivirus settings to allow VPN connections.

Q: What should I do if adjusting DNS settings doesn’t solve the problem?

A: Check for VPN software updates, as these can include fixes for connectivity issues. Also, verify that your firewall or antivirus isn’t blocking the VPN. If these steps don’t help, contact your VPN’s support team for personalized assistance.

Q: Are there any preventive measures to avoid future VPN connectivity issues?

A: Regularly updating your VPN software, maintaining a reliable internet connection, and occasionally reviewing your firewall and antivirus settings to ensure they don’t block VPN connections can prevent future issues.

Vpn unable to resolve server address

When you encounter the issue where your VPN is unable to resolve the server address, it typically points to a DNS resolution problem. DNS, or Domain Name System, is the internet’s way of translating domain names into IP addresses that computers can understand. Here’s how to tackle this issue effectively:

  1. Check Your Internet Connection: Firstly, ensure your internet connection is stable without the VPN. A quick test can save you from unnecessary troubleshooting.
  2. Restart Your VPN Client: Sometimes, a simple restart of your VPN client can refresh its connection to the server.
  3. Update Your VPN Software: Ensure that your VPN client is up to date. Developers often release updates that fix connectivity issues, including server address resolution problems.
  4. Change the DNS Settings: Manually setting your device’s DNS servers to public ones like Google ( and or Cloudflare ( can resolve this issue. This change allows your device to have a fresh start in resolving domain names.
  5. Try Connecting to a Different Server: Sometimes, the problem might be with a specific server. Switching to a different server within your VPN app can bypass the issue.

If you’re looking for a VPN that prioritizes seamless connectivity and ease of use, consider ForestVPN. With a robust network of servers and dedicated support to guide you through any hiccups, ForestVPN ensures you stay connected securely and effortlessly. Experience the difference and make the most of your online activities without the fear of encountering server address issues. Join us at ForestVPN and elevate your internet experience today.

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