Cisco VPN Client Install Error 28000

KB ID 0000945 

Problem

Seen when attempting to install or remove the Cisco VPN client software.

Error 28000: Before installing the Cisco Systems VPN Clients {version}, you must uninstall the previous version of Cisco Systems VPN Client {version}, using the Add/Remove Program Files option in the Control Panel. Then restart your system.

Solution

1. Firstly Windows Key +R > appwiz.cpl {Enter} > Locate and remove the VPN Client. Though sometimes you will not find it.

2. Locate ‘VPN Client’ Folder in program files > Locate the vpnclient.ini file and open it with Notepad, add the following two lines;

[box]

Remove Previous = 1
DelayRebot = 1

[/box]

Save the file.

3. Run the VPN Client software setup file with a ‘/quiet’ switch on it (as below). it will look like nothing is happening, go and have a coffee, then reboot and try to reinstall.

Manually Remove Cisco VPN Client

This is a little extreme, but if you have no other choice!

4. Windows Key +R > regedit {Enter} > Navigate to;

[box]

HKEY_LOCAL_MACHINE > SOFTWARE > Cisco Systems

[/box]

Delete the VPN Client Key.

5. Navigate to;

[box]

HKEY_LOCAL_MACHINE > SOFTWARE > DeterministicNetworks

[/box]

Delete the ALL the sub-keys (in the example below, there are two).

6. Navigate to;

[box]

HKEY_LOCAL_MACHINE > SOFTWARE > Microsoft > Windows > CurrentVersion > Uninstall

[/box]

Delete the ANY keys that match;

  • {1CE60928-8325-49A8-8B06-633E48DD2B67}
  • {51FB15F4-AD27-43BC-AD4B-DD0354FB6BBD}
  • {5624C000-B109-11D4-9DB4-00E0290fCAC5}

7. Navigate to;

[box]

HKEY_LOCAL_MACHINE > SYSTEM > CurrentControlSet > Services

[/box]

Delete ANY keys that match;

  • CVirtA
  • CVPND
  • CVPNDRVA

8. Drill all the way back to the top of the registry (i.e. select Computer) > F3 (to launch ‘Find’) > Locate and delete all instances of the following;

  • Vpngui
  • Vpnapi
  • CVPND
  • CVPNDRA
  • Ipsecdialer

9. Windows Key +R > services.msc {Enter} > Locate and stop the Cisco systems, Inc VPN Service.

10. Delete the ‘C:Program FilesCisco SystemsVPN Client’ folder.

11. Delete the ‘C:Program FilesCommon FilesDeterministic Networks’ folder.

12. Delete the following files;

  • From %SystemRoot%system32drivers delete dne2000.sys (if it exists).
  • From %SystemRoot%inf delete dne2000m.inf and dne2000m.pnf (if they exist).
  • From %SystemRoot%system32 delete dneinobj.dl (if it exists).
  • From %SystemRoot%system32drivers delete cvpndrv.sys (if it exists).

 

Related Articles, References, Credits, or External Links

NA

Windows 10 – Running the Cisco VPN Client Software

KB ID 0001097 

Problem

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

Solution

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

2. Run Windows Fixup for DNE > Then Reboot.

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

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

5. Now install the Cisco VPN client (Note: 5.0.07.0440) is the last one that was released.

Install the latest version: Download Cisco VPN Client Software

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.

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

8. Essentially open the registry editor and navigate to;

[box]HKEY_LOCAL_MACHINE > SYSTEM > CurrentControlSet > Services > CVirtA[/box]

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

11. So it looks like this.

12. We are up and working.

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

Related Articles, References, Credits, or External Links

Cisco ASA – Remote IPSEC VPN With the NCP Entry Client