Fix "Unable to Continue Error #40309" in Trend Micro VPN for Mac

If you see this message while turning on Trend Micro VPN on your Mac:

Unable to Continue: Try again. If the problem persists, contact Trend Micro and mention error #40309.

Don’t worry — this is usually caused by a connection issue and can be fixed with a few simple steps.

Why does this happen?

Error #40309 is usually related to:

• A temporary internet connection problem.
• A network restriction.
• An issue with your VPN subscription or available devices.

How to fix it

1. ✅ Check your subscription

   Make sure your Trend Micro subscription is active and that you still have space to add the VPN to your device.
   Here’s how:

   1. Sign in to your Trend Micro account.
   2. Click Manage Devices under Trend Micro VPN.
   3. Check if you have an available slot (or “seat”) for another device.

   If there are no available slots, you may need to remove an old device or upgrade your plan.

2. 🌐 Check your internet connection

   A slow or restricted internet connection can prevent the VPN from activating.
   Try these quick fixes:

   • Switch to a different Wi-Fi network.
   • Use mobile hotspot temporarily to test.
   • Wait a few minutes and try again (it could be temporary).
   • Restart your modem/router.

   If the issue continues, contact your Internet Service Provider (ISP) to make sure there are no network restrictions.

3. 🔄 Reinstall Trend Micro VPN

   If the steps above don’t work, reinstalling the app may help.

   1. Uninstall Trend Micro VPN
      1. Make sure Trend Micro VPN is closed.
      2. Open Finder.
      3. Click Applications.
      4. Drag Trend Micro VPN to the Trash.
      5. Enter your Mac administrator password if asked.
      6. Click Finder > Empty Trash to fully remove it.
   2. Reinstall the app
      1. Open the App Store on your Mac.
      2. Search for Trend Micro VPN – Safe VPN Proxy App.
      3. Click Get, then Install.
      4. Open the app and follow the on-screen instructions.

Still not working?

If you continue to see error #40309 after trying the steps above, contact Trend Micro Support and mention Error #40309 so we can assist you further.