Software⏱️ 3 min read📅 2026-06-11

How to Fix error 113 Error – FortiClient on OS X generates cascading error 113

FortiClient error 113 on OS X causes VPN connection to terminate unexpectedly. Find solutions to resolve the issue.

Quick Answer: Restart FortiClient and try reconnecting to the VPN server.

The FortiClient VPN connection on OS X generates error code -113, which can be frustrating and disrupt productivity. This issue affects users who rely on remote access to secure their networks.

Eliminating this error is crucial to ensure seamless connectivity and data security for businesses and individuals alike.

⚠️ Common Causes

  • The primary reason for error code -113 in FortiClient on OS X is often due to a misconfigured VPN connection or an outdated FortiClient version. When the VPN settings are not properly configured, it can lead to disconnections and errors.
  • Another possible cause could be a conflict between the FortiClient VPN software and other network management tools or applications.

🛠️ Step-by-Step Verified Fixes

Updating FortiClient to the latest version

  1. Step 1: Open the FortiClient application on your Mac and click on 'Help' in the top menu bar.
  2. Step 2: Select 'Check for Updates' from the drop-down menu to ensure you have the latest version of FortiClient installed.
  3. Step 3: If an update is available, follow the prompts to download and install the updated software.

Resetting VPN settings

  1. Step 1: Restart your Mac in Safe Mode to disable any conflicting system services. To do this, restart your Mac, hold down the 'Shift' key until you see the login screen.
  2. Step 2: Click on the Apple menu and select 'System Preferences.' Then, click on 'Network' and select your VPN connection from the list.
  3. Step 3: Reset the VPN settings by clicking on the 'Advanced' button next to your VPN connection. Select 'Reset' to restore default settings.

🎯 Final Words

To resolve error code -113 in FortiClient on OS X, try updating to the latest version of the software or resetting your VPN settings. If issues persist, consider reaching out to FortiGate support for further assistance.

Did this fix your problem?

If not, try searching for specific error codes.

🔍 Search Error Database

❓ Frequently Asked Questions