Apple computer macOS cannot see the option of network extension

First try using the restart method, restart your Mac computer, and then reinstall the HZVPN dmg installation package. If it still doesn't work, continue reading.

root cause

systemextensionsctl list
0 extension(s)

The network extension is not installed into the system at all.The VPN configuration (HZVPN) exists, but the Network Extension process behind it never registers successfully.
The log also confirmed:

NESMVPNSession[Primary Tunnel:HZVPN:...]: Adding a connection for client scutil[22068]
NESMVPNSession[Primary Tunnel:HZVPN:...]: Removing a connection for client scutil[22068]

Connection requests come in and are immediately removed - because no extension can be found to handle them.

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Cause: System Extension activation issue distributed by DMG

macOS requires System Extension (Network Extension) to be activated when the app is run for the first time. After activation, a system prompt will pop up to ask the user for permission.Possible failure points:OSSystemExtensionRequest

1. App never successfully triggers activation request——Has the user seen the "Allow system expansion" pop-up window during the boot process?
2. The user clicked "Allow" but the system did not execute it.—— There are such reports on macOS 26
3. Apps in DMG are run directly from the mounting directory and are not copied to /Applications——This will cause System Extension activation to fail

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confirm

Step 1: Confirm that the App is in /Applications

ls /Applications/ | grep -i 火种
ls /Applications/ | grep -i huozhong

Step 2: Check if there are any blocked extensions in the security settings

• System Settings → Privacy & Security → Scroll down to see if there is a "Blocked System Software" prompt

Step Three: Try to Force Retrigger Activation

# Clean up the old configuration first
sudo systemextensionsctl reset

Then re-open the app and go through the boot process again to see if the "Allow system extension" pop-up window pops up.
⚠️ Will clear all system extensions to let users know.systemextensionsctl reset