Cisco VPN Client on Windows 10

OK, so I thought I was pretty lucky to install Windows 10, and the only thing it broke was itself. I turns out I was not so lucky and it has broken my Cisco VPN Client aswell, I am now greeted with the pretty serious looking message shown below, after what looks like the client trying to install itself again after trying to run it:

cisco open install error

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

So, Windows 10 is a corrupted operating system? nice one – I just installed it and now it’s corrupt. Really??! No, but it was fun to procastinate.

So first reaction that something in the Windows 10 upgrade has changed the networking configuration, so we should allow the client to try to repair the install through programs and features control panel, this (sort of expectedly) failed with the same error. But at least we tried it, right?

So lets propperly remove the client and do a full reinstall. Uninstalling the client was unnerving, which is not something I have ever felt when uninstalling an application! The windows installer loading bar, loaded and exited without any prompts, and the client was removed from the list of installed applications. You can see an example of the windows installer progress bar above.

The software failed to install with the same error message we’ve seen twice now. Frustrating? Just a little.

Lets try DNE! Ok so some rebooting invloved here unfortunatly. And also an enlightening experience thinking about my Windows 10  issues. When installng the client after performing the DNE update as per my earlier post, I got some installation problems relating to folder redirection, so I had to install the client using a local admin account. This sort of confirms my suspicious that folder redirection is causing issues with my machine more investigation required on that one I think, I’ll let you know.

Now, rather alarmingly, it seems that the client is on an offical Windows 10 unsupported list, in that if you try to run the .exe to install the VPN client, you get directed to a windows 10 incompatible app page. Run the .msi, everything will be OK..

Back on track, and having now installed the software using the .msi and a local admin account (you will not need to do this if your machine is not domain joined), I have logged back on using my domain account, and hey presto, the client seems to be working. It loads without warning, anyway, it won’t connect though. The log reads Failed to download keys. Error 433, Bitch.

So, apparantly installing another vpn client, the Sonic Wall 32bit or 64 bit client first then installing the cisco client prevents the problem from occouring. So here we go… again… uninstall the cisco VPN client… and reboot.. then uninstall the DNE Update. Then reboot and run winfix again. Reboot, then install sonic wall then cisco VPN client, make sure you apply the registry fix if you get the cannot enable virtual adapter error, and away you go. In business.. 2 hours later…

So, In Summary :

There you go, eight simple steps to get it working again. Simple when you know how.

And the cause? Well Microsoft will update their operating systems from time to time, and Cisco want you to use anyconnect now so havent supported this client for some time, this will get you running for now, but maybe it’s time to start thinking about a new platform?

The Cisco VPN Client used was vpnclient-winx64-msi-

Let me know if this works for you, or if it doesn’t!

5 thoughts on “Cisco VPN Client on Windows 10”

    1. This device was a coeptmle disaster in my application.Among various issues;- VLAN support was unstable- The device crashed at least once a week- Both memory and CPU usage remained very high without complex features enabled- There is no command line interface.- Commercial SSL Certificate purchased from GeoTrust did not work.- Device crashed so badly one time that the Unit needed to be factory reset and reconfigured.- Telephone / Small Business support was verging on useless for issues.In short, don’t waste your money on this. Spend a bit more and buy a SonicWall TZ200 or TZ210. You’ll save in the long run.

  1. DNE driver as part of it s install. If you have installed previous DNE installs and Cisco VPN client and are still having problems with 433 then I would recommend uninstalling, rebooting and THEN running the Citrix winfix.

    1. I bought the SA540 for our home oficfe. It is one powerful, capable, and robust SOHO/SMB router.It has every VPN capability you could ever ask for in a router of this price range. We use the IPSec VPN functionality to VPN into our home oficfe via our iPhones, iPad, and Macbook Pros. It takes two separate IPSec Policies to do this, but using the built-in VPN wizard makes setting up the VPN policies very easy. We also use the SSL VPN functionality to VPN into our home oficfe via our Windows Ultimate laptop (amongst other devices depending on where we are at). We use the VPN split mode functionality which is awesome. We don’t even use the Quick VPN or Cisco VPN Client applications because we haven’t found a need to use them. They are there just in case SSL VPN does work for some reason. It’s always nice to have a backup way of VPN’ing to your home network. We have 3 Linksys E4200 configured in Bridge mode (actually not a true ‘bridge’ mode just a fancy name for ‘dumbing the device down into an Access Point’) that we have connected to the SA540. Amongst all at we have several D-Link 5- and 7-port gigabit switches. In total we have two Macbook Pros, a Windows 7 Home Premium PC, a Windows XP Professional PC, a Windows 7 Ultimate laptop, an iPad, two iPhones, two network printers (a Brother mono laser and a Dell color laser), two TVs, two AVRs, two Xbox 360s, 2 Playstation 3s, an Oppo BDP-93 universal blu-ray player, a Nintendo Wii, etc all networked together. The SA540 handles all the traffic with ease.To top it all off we use the Intrusion Prevention System (IPS) functionality as well. Between that and the powerful SPI firewall we feel we are well protected. We use Kiwi Syslog Server to collect SNMP traps and syslogs from the router. This router has the best/most logging options of any router we have owned. We monitor the logs when things aren’t going right (like when the IPS creates false positives) so we can make corrective action.This router isn’t for the faint-hearted. You really need to have a little networking background to take advantage of the advanced features this router has to offer. On the other hand it is all GUI based you are limited to just the GUI (no command line interface… CLI).All in all, I totally recommend this router to computer savvy individuals that have a desire to have a strong home or small business network. You won’t be disappointed. Cisco puts out regular firmware updates and IPS signatures. I’m not saying that this router doesn’t have some flaws, quirks, and/or bugs, but Cisco will eventually get around to fixing them.BTW, this router supports ipv6 and has a built-in ipv6 firewall. I have messed around with 6to4 and tunnel brokers, but I ended out disabling all the ipv6 features. I will wait until our ISP supports native ipv6.

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