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Resolve Cisco VPN Error 56: Expert Technician Solution

Whenever you are trying to connect to your client’s network, if there is an authentication failure due to a virtual adapter, you may get Cisco VPN error 56. Mostly the authentication is provided to customers using RSA SecurID token, as it enables you to download the VPN client for connecting to the VPN server. However, many customers have reported that after entering customer credentials, it’s showing them ‘error 56’ and denying further access. So, if you are also trying to access Cisco VPN but getting the error, check out the best solutions.

Reasons For Cisco VPN Error 56

You may get this Cisco VPN Error 56 if the executable file (.exe) in the Cisco folder is corrupt and not functioning correctly. So, whenever clients are trying to click vpnclient.exe or cvpnd.exe files, it may cause some errors.  This corrupt .exe file will not produce any output but can generate error 56 instead.

When you start the Cisco VPN client network manually using services.msc, it may cause this error due to an incomplete installation of VPN Cisco Client program.

In case you have recently made some changes regarding Cisco VPN client software through installation or uninstallation, it may corrupt the Windows registry data to produce this error 56.

If your Cisco Client VPN program files or Windows system files have become corrupt due to a virus or malicious programs, you may receive  Cisco VPN client error 56.

You may get this error if the VPN client files in Cisco is mistakenly removed from the database. This mistake can happen either by the user’s action or due to any malicious program. Hence, in both the cases, it will generate this error in your Windows system.

So, the runtime error like Cisco VPN 56 can occur not just for one reason, but for several causes. Hence, you can contact Support to provide troubleshooting solutions to fix VPN 56 error.

Troubleshooting Steps To Fix Cisco VPN Client Error 56

Most customers are facing this Cisco VPN client 56 error due to Cisco not closing VPN subsystem correctly. To troubleshoot this error, go through these following steps:

Step 1

If you are receiving error 56 due to corrupt VPN program files, uninstall Cisco VPN client program.

Step 2

To remove all files and components in program files, you need to use ‘Device Manager.’ With the help of the uninstallation wizard, you can delete the remaining files of Cisco Virtual Adapters. This may fix the VPN client error and allow you to initiate new installation of VPN app.

Step 3

After the uninstallation process is finished, you have to reinstall the Cisco VPN client program and check if the Cisco VPN client error 56 is gone.

Step 4

If reinstalling fails, bring back the login window within the display screen visibility. For bringing back the login window, you have to troubleshoot this issue by operating VPN app using active window controls. 

Fixed Cisco VPN Error 56 Now

We understand the importance of VPN client program and problems you undergo due to Cisco VPN error 56

Read also: Know Why Windows Defender Won’t Scan – Step-by-Step Guide

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