If you’re struggling with the Ivati VPN Client 1111 Host Not Found error, you’re definitely not alone. This common VPN connectivity issue affects users who rely on Ivati for secure browsing, data encryption, and private online access. The problem usually occurs when the VPN client fails to communicate with its remote server, meaning the system cannot locate the correct host address to establish a secure tunnel.
In most cases, this happens due to DNS misconfigurations, firewall restrictions, outdated VPN software, or incorrect port forwarding settings. Fortunately, the issue is fixable with the right steps. In this detailed guide, we’ll explore the top 5 proven fixes to resolve the Ivati VPN Client 1111 Host Not Found error and help you restore a stable, encrypted, and smooth VPN connection.
Table of Contents
1. Understanding the Ivati VPN Client 1111 Host Not Found Error
Before jumping into solutions, it’s essential to understand what the Ivati VPN Client 1111 Host Not Found message actually means. This VPN connection error occurs when your VPN client tries to reach its remote server but fails to locate the correct IP address due to network instability, DNS misrouting, or blocked ports. In simpler terms, your system can’t establish a secure link between your device and the VPN’s host server.
This issue is common when your Internet Service Provider (ISP) blocks certain VPN servers or when your DNS cache becomes outdated. It disrupts the VPN handshake process, preventing your connection from being encrypted properly.
Common Technical Causes of the Ivati VPN Client 1111 Host Not Found Error
- Corrupted DNS cache that prevents accurate server lookup
- Blocked ports or firewall restrictions are stopping outgoing VPN requests
- Incorrect VPN configuration or invalid server address setup
- ISP-level filtering of specific VPN IPs or domains
- Outdated SSL certificates or VPN protocols are affecting authentication
When these elements overlap, your VPN fails to establish a secure, encrypted tunnel, resulting in the “host not found” message. The good news? These errors can be fixed systematically using the practical troubleshooting steps discussed in the next sections.
2. Check Internet Connection and DNS Settings
One of the quickest and most effective ways to fix the Ivati VPN Client 1111 Host Not Found error is by verifying your internet connection and DNS settings. Even a small DNS mismatch can interrupt communication between your VPN client and the remote VPN server, causing the host not found issue to appear. Ensuring a stable and clean network setup helps restore a secure VPN tunnel.
Step-by-Step DNS Fix for Ivati VPN Client 1111 Host Not Found
- Press Windows + R, type cmd, and hit Enter.
- In the command prompt, run: ipconfig /flushdns
- Then type: netsh winsock reset and press Enter.
- Restart your PC and reconnect to the Ivati VPN client.
This process clears corrupted DNS cache, resets network mappings, and ensures your computer communicates with the VPN server using fresh and accurate IP data.
Pro Tip for Better VPN Stability
For more consistent results, switch to a public DNS provider such as Google DNS (8.8.8.8 / 8.8.4.4) or Cloudflare DNS (1.1.1.1). These DNS options offer faster server resolution, reduced latency, and improved VPN reliability, often eliminating lookup errors and connection failures associated with the Ivati VPN Client 1111 Host Not Found problem.
3. Update or Reinstall Ivati VPN Client
A common yet overlooked fix for the Ivati VPN Client 1111 Host Not Found error is updating or reinstalling your VPN software. Outdated versions often contain corrupted files, deprecated encryption protocols, or mismatched server configurations that prevent a stable connection.
Why Updating Ivati VPN Works
Each new release of the Ivati VPN client comes with critical bug fixes, security patches, and performance improvements designed to improve server connectivity. By reinstalling, you reset all cached data, repair damaged system entries, and restore the default configuration — ensuring smooth communication between your device and the VPN server.
How to Reinstall Ivati VPN Client Correctly
- Uninstall the Ivati VPN client completely from your system.
- Restart your computer to remove residual background processes.
- Visit the official Ivati VPN website and download the latest version.
- Reinstall the software and log in with your existing credentials.
Once reinstalled, reconnect to your preferred VPN server. In most cases, the Ivati VPN Client 1111 Host Not Found issue disappears instantly because your routing data and authentication certificates are revalidated, ensuring secure and uninterrupted connectivity.
4. Disable Firewall and Antivirus Restrictions
At times, your firewall or antivirus software can silently block VPN connections, leading to the Ivati VPN Client 1111 Host Not Found error. These security tools may mistakenly flag your VPN’s network packets or executable files as unsafe, preventing the client from reaching its remote server.
How to Temporarily Disable or Whitelist Ivati VPN
- Open Windows Security → Firewall & Network Protection.
- Select Allow an app through the firewall.
- Locate the Ivati VPN client and ensure both Private and Public boxes are checked.
- If you’re using a third-party antivirus, open its settings and whitelist Ivati VPN manually.
Once you’ve adjusted the permissions, restart your VPN and test connectivity. If the error disappears, it confirms that your firewall or antivirus software was blocking encrypted traffic.
Bonus Tip for Smooth Connectivity
Modern firewalls use Deep Packet Inspection (DPI) to analyze data streams. This sometimes misidentifies VPN protocols like UDP as suspicious. Try switching to TCP mode within Ivati’s settings — it’s slower but far more reliable. This simple tweak often resolves the Ivati VPN Client 1111 Host Not Found issue permanently while maintaining a secure tunnel connection.
5. Adjust Server Configuration and Ports
If you’ve tried previous fixes and still face the Ivati VPN Client 1111 Host Not Found error, the issue may lie with your server configuration or port settings. Sometimes, the VPN server you’re connected to is offline, overloaded, or blocked by your Internet Service Provider (ISP), preventing proper host resolution.
Best Practices for Server Adjustment
- Connect to a Different Server Region – Switch to another country or nearby region from the Ivati VPN server list to restore access.
- Switch Between TCP and UDP Protocols – TCP provides better stability, while UDP offers faster speeds. Testing both can reveal which works best for your network.
- Use Trusted Ports – Change your port to 443 (HTTPS) or 1194 (OpenVPN) — these are secure, widely accepted, and less likely to be blocked by ISPs.
- Disable Auto Server Selection – Manually choosing a server often delivers faster and more stable connections than automatic selection.
When ISPs use network-level throttling or IP blocking, manual server switching helps bypass restrictions and restore connectivity instantly. These adjustments often resolve the Ivati VPN Client 1111 Host Not Found problem by rerouting your connection through more reliable and accessible servers.
Comparison Table: Causes and Fixes for Ivati VPN Client 1111 Host Not Found
| Common Cause | Error Behavior | Best Solution |
| DNS Conflict | VPN shows “host not found” or server unreachable | Flush DNS, reset network, and switch to Google DNS (8.8.8.8 / 8.8.4.4) for faster lookup |
| Outdated Ivati VPN Client | App fails to connect or crashes on launch | Uninstall and reinstall the latest version of Ivati VPN Client |
| Firewall or Antivirus Restrictions | Sudden disconnects or blocked tunnel requests | Whitelist Ivati VPN or temporarily disable the firewall for testing |
| Blocked or Overloaded Server | Frequent timeout or connection failure | Change server region or modify port to 443 (HTTPS) or 1194 (OpenVPN) |
| ISP Filtering or Network Throttling | Slow, unstable, or no response from VPN | Switch VPN protocol (TCP/UDP) or enable obfuscation mode for stealth access |
Conclusion: Fixing the Ivati VPN Client 1111 Host Not Found Error for Good
After exploring all the proven fixes, it’s clear that the Ivati VPN Client 1111 Host Not Found error isn’t as complex as it seems. In most cases, the issue arises from DNS misconfiguration, outdated VPN software, or blocked ports. Once you flush DNS, update Ivati VPN, and adjust your firewall or server settings, your connection should restore flawlessly.
What makes Ivati VPN unique is its secure encryption, fast tunneling protocols, and user-friendly interface — but even the best VPNs need occasional maintenance to stay optimized. By applying these steps, you’re not just fixing an error — you’re improving connection stability, online privacy, and streaming performance.
Always keep your VPN client updated, use public DNS providers, and regularly test different server locations to prevent future connectivity issues.
If this guide helped you solve the Ivati VPN Client 1111 Host Not Found error, share it with others who might be struggling too. For more expert guides on VPN troubleshooting, network security, and privacy optimization, stay connected and bookmark our blog — your ultimate tech problem-solving resource.
FAQs – Fixing the Ivati VPN Client 1111 Host Not Found Error
1. Why am I getting the Ivati VPN Client 1111 Host Not Found error?
This error usually occurs when the VPN client cannot reach its remote server. Common causes include DNS misconfiguration, firewall restrictions, or outdated Ivati VPN software. Ensuring proper network setup and updating the client often resolves this issue quickly.
2. How do I fix the Ivati VPN Client 1111 Host Not Found problem permanently?
To permanently fix it, flush your DNS, update or reinstall the Ivati VPN client, and switch to a public DNS like Google or Cloudflare. If that doesn’t help, change the VPN port or protocol and whitelist the app in your firewall settings.
3. Can my ISP cause the Ivati VPN Client 1111 Host Not Found issue?
Yes — some ISPs use VPN throttling or IP filtering, which blocks the Ivati VPN from connecting to its servers. Try changing server locations, enabling obfuscation mode, or using TCP port 443 to bypass ISP-level restrictions.
4. Is it safe to disable my firewall while troubleshooting the Ivati VPN Client 1111 Host Not Found error?
Yes, temporarily disabling your firewall or antivirus is safe if done carefully. The goal is to test whether your firewall is blocking Ivati VPN traffic. Once confirmed, add Ivati to your allowed apps list and turn your protection back on immediately.
5. Does reinstalling Ivati VPN really fix the host not found error?
Absolutely. Reinstalling refreshes your VPN configuration files, updates SSL certificates, and clears corrupted data. Most users find that a clean installation completely removes the Ivati VPN Client 1111 Host Not Found issue.
6. What DNS settings are best for avoiding this VPN error?
Use Google DNS (8.8.8.8 / 8.8.4.4) or Cloudflare DNS (1.1.1.1) for optimal speed and reliability. These providers ensure faster and more stable server lookups, minimizing the risk of host not found messages in Ivati VPN Client.
7. When should I contact Ivati VPN support?
If none of the above methods fix the Ivati VPN Client 1111 Host Not Found issue, it’s time to contact official support. Provide your error logs, server name, and device details so the team can pinpoint the issue and suggest advanced solutions.