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

Posted: 17th August 2011 in Cisco, Network, VPN

I received the above error while trying to install Cisco’s VPN x64 client on my laptop.

 

VPNIntall-error.png

 

After some investigation it turns out this error is caused by default value set by Windows 7 in the registry key

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Network\MaxNumFilters

By default, this value is set to 8 and apparently can be set to a maximum value of 14. As some of the filters were used by Virtual Box, etc. I decided to set this to the maximum, rebooted and, hey presto, it installed!!

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Comments
  1. dsf says:

    yes it works! thanks.
    and strange, another machine is 8 and can install, but this one can’t and have to change to 14 then works.
    maybe that one has no virtual box or else.

  2. dsf says:

    BTW, no reboot required with me.

  3. Renjith says:

    Voila.. Its working.. Man.. you are a hero 🙂

  4. mark says:

    did not solve my issue

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