The CiscoVPN solution is working rather nice on Windows 10 if we look at the reports. The most prominent issues appear only after the major updates which tend to break the application.
These are not common, but then again, they seemingly render the VPN client completely unusable. At least that was the case with Fall Creators Update and April Update.
However, there’s no need to worry. We found some applicable steps and enlisted them below so make sure to check them out.
How do I fix the Cisco VPN issues on Windows 10?
1. Repair the installation
- In the Windows Search bar, type Control and open Control Panel.
- Click Uninstall a program in the bottom left corner.
- Click on the Cisco System VPN client and choose Repair.
- Follow the instructions until the installation is repaired.
Let’s start by repairing the installation. Lots of third-party applications tend to break after a major update is administered. That’s why it is always recommended reinstalling them after the update is installed.
Even better, if you want to avoid one of the numerous update/upgrade errors, uninstalling is a viable choice.
However, if you’ve not uninstalled Cisco VPN prior to an update, instead of reinstallation, you should try out repairing the present installation first.
If you’re not sure how to repair the Cisco VPN, follow the steps we provided above.
2. Allow VPN to freely communicate through Firewall
- In the Windows Search bar, type Allow an app and open Allow an app through Windows Firewall.
- Click Change settings.
- Make sure that Cisco VPN is on the list, and it’s allowed to communicate through Windows Firewall.
- Check both Private and Publicrong> network boxes.
- Confirm changes and open the Cisco VPN.
System updates can, quite frequently, change the system settings and preferences to default values. This misdeed, of course, can affect Windows Defender settings as well.
If that’s the case, chances are that lots of third-party apps that require free traffic through the Firewall won’t work. Including the Cisco VPN client.
That’s why we encourage you to check the settings and confirm that the app is indeed allowed in Windows Firewall settings.
3. Use a more reliable VPN
If your current VPN faces frequent issues after updates, then maybe it’s time you replaced it altogether before going through any of the troubleshooting steps.
That being said, you should use a reliable VPN, compatible with Windows that never breaks after updates, a VPN service like Private Internet Access.
PIA, developed by Kape Technologies is constantly being updated with new features, and this includes compatibility improvements after many Windows 10 updates.
So far, PIA supports Windows 7, 8.1, and 10 (32 or 64 bit), and it is usually updated after every major Windows 10 update, or at least that is what we should believe judging by their changelog.
4. Tweak the Registry
- Right-click on the Start button and open Device Manager.
- Expand Network adapters.
- Right-click on Virtual Adapter and update it.
- Restart your PC.
Like many other integrating VPN solutions, Cisco VPN comes with the specific associated Virtual Network Adapter. The failure of this device is another common occurrence, and it’s accompanied by the error code 442.
The first thing you can do if this error occurs is checking the Virtual Adapter driver in the Device Manager.
Now, if that fails to resolve the issue, you can try a Registry tweak which seems to address it fully. This requires administrative permission, in order to make changes to Registry.
Furthermore, we strongly suggest treading carefully since untaught meddling with Registry can result in a system failure.
Follow these steps to tweak Registry and repair Cisco VPN:
- Type Regedit in the Windows Search bar and open Registry Editor.
- Copy-paste the following path in the address bar:
- Right-click on the DisplayName registry entry and choose Modify.
- Under the Value Data section, make sure that the only body of text which stands is the Cisco Systems VPN Adapter.
- For the 64bit version, the text is the Cisco Systems VPN Adapter for 64-bit Windows.
- Save changes and try running Cisco VPN again.
5. Perform a clean reinstallation
- Navigate to Control Panel and open Uninstall a program.
- Uninstall the Cisco Systems VPN client.
- Run IObit Uninstaller (or any other 3rd-party cleaner).
- Navigate to the system partition and delete everything Cisco-related from the Programs folder.
- Download the Cisco VPN client, here.
- Install the client and try running it.
Finally, if none of the previous solutions got Cisco VPN to work, the only remaining solution we can suggest is performing a clean reinstallation.
Ideally, this will require a clean slate install where you’ll clear all remaining associated files from your PC prior to installing Cisco VPN again.
Follow the above steps to perform a clean reinstallation and fix Cisco VPN on Windows 10.
If Cisco VPN is still not working on Windows 10, try contacting the support as they would more likely assist you in the best manner.
That’s it. If you have any alternative solutions you care to share with us, feel free to do so in the comments section below.