Cisco EzVPN Client: Reason 442 on Windows 10 x64

Problem

After installation of Cisco EzVPN Client v5.0.07.0440 on Windows 10 x64 by opening the configured VPN connection comes the message:

Secure VPN Connection terminated locally by the Client.
Reason 442: Failed to Enable Virtual Adapter.

Solution

Step 1:

  • Open the regedit and go to HKLM\SYSTEM\CurrentControlSet\Services\CVirtA.
  • Change the value of string “DisplyName” to “Cisco Systems VPN Adapter for 64-bit Windows” even if you see in Network File & Sharing Center and in Device Manager the adapter named  “Cisco Systems VPN Adapter for 64-bit Windows #2”.

 

Step 2:

  • Open the regedit and go to HKLM\System\CurrentControlSet\Services\Tcpip\Parameters.
  • Change the value of DWORD “ArpRetryCount” to “0”.

 

Step 3:

  • Permanently deactivate the service Internet Connection Sharing.
  • Restart the host.

Cisco EzVPN Client: Error 27850 on Windows 10 x64

Problem

By the installation of Cisco EzVPN Client v5.0.07.0440 on Windows 10 comes the message:

Error 27850

Unable to manage networking component.
Operating system corruption may be preventing installation.

Solution

Step 1:

 

Step 2:

  • Install the Cisco EzVPN Client v5.0.07.0440 once again.
  • Restart the host.