Windows 10 – Running the Cisco VPN Client Software


KB ID 0001097 Dtd 13/08/15


OK, firstly why are you still using the IPSEC VPN client? It's not only gone 'End-of-life', it went end of support in July 2014. {That's my Cisco Partner bit done}. So you have an old IPSEC Remote VPN solution and can't afford an upgrade to AnyConnect? Now your shiny Windows 10 machines are complaining when you try and install the VPN client software.

Error 27850 Windows 10

Error 27850. Unable to manage networking component. Operating system corruption may be preventing installation.


1. Make sure you have removed all traces of the Cisco VPN client software before proceeding.

Error 27850 Windows 10

2. Run Windows Fixup for DNE > Then Reboot.

Error 27850 Windows 10

3. Install the SonicWALL VPN Client (I'll explain why in a minute).

Error 27850 Windows 10

4. This upgrades the DNE (Deterministic Network Enhancer). Note: You can also run the Citrix DNE Update which will do the same thing.

Error 27850 Windows 10

5. Now install the Cisco VPN client (Note: is the last one that was released.

Install the latest version: Download Cisco VPN Client Software

Error 27850 Windows 10

6. Note: If you get an error to say This software will not run on Windows 10, go to the folder the setup files were extracted to right click the setup file > select troubleshooting comparability > follow the instructions.

Error 27850 Windows 10

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

7. If you see this error, that's been a problem for a long time, I've already blogged about it below

Windows 8 and Cisco (IPSEC) VPN Client

Error 27850 Windows 10

8. Essentially open the registry editor and navigate to;

HKEY_LOCAL_MACHINE > SYSTEM > CurrentControlSet > Services > CVirtA

Locate the DisplayName > Edit its value > Delete all the text to the LEFT of "Cisco Systems VPN Adapter for 64bit Windows."

Error Failed to Enable Virtual Adapter

11. So it looks like this.

Cisco VPN Error 442

12. We are up and working.

Cisco VPN Connected Windows 10

13. You can now safely uninstall the SonicWALL VPN client.

Cisco VPN Connected Windows 10

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Author: Migrated

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