Problem
The following error message is displayed when trying to start Charon-AXP or Charon-VAX on Windows and prevents the virtual machine from starting:
... Access is denied. : EWA0 failed to open interface to the packet filter ...
The configured node failed to initialize due to configuration errors.
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This problem has been detected on Windows 7 and Windows 2008 R2 servers, mainly after a Windows server reboot and/or Windows update.
If these error messages are displayed after a warning message related to digital signature, please refer to the appropriate user's guide, Installation chapter / Software requirements. This may be due to Secure Boot restriction.
Solution
The following procedure must be applied in this situation:
- Open up "Control Panel → Network and Internet → Network and Sharing Center"
- Select "Change Adapter settings"
- Select each network interface used for Charon and with right click of mouse select "Disable"
- Select each network interface used for Charon and with right click of mouse select "Enable"
- Run the Charon Network Control Center and:
- Release all network interfaces dedicated to Charon to the host
- Dedicate those interfaces back to Charon
- Start CHARON
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