or related manufacturer's website. Baris Kurt from Istanbul Turkey #131 | Friday, January 2, 2009 9:46 AM Thanks very much. I had that problem that tried most of the advises posted here. I've gotten this error ever since I installed the VPN from cisco. Source
Resolved my issue on 10.5.2 using 4.9.01.0100 Jeff from Champaign IL #56 | Tuesday, February 19, 2008 1:36 PM i had the same problem and was able to get around it A black box will open with a blinking cursor. Thanks!! openvpn from #120 | Tuesday, October 21, 2008 1:36 AM I recently launched openvpn server for remote clients. https://supportforums.cisco.com/discussion/10256526/vpn-client-error-51-windows-xp
thanks for the info, worked right away. Tim Chan from #102 | Sunday, August 31, 2008 10:32 PM thank you. Luke from #53 | Sunday, February 10, 2008 7:30 PM Thank you very much!!
eff-martins-imac:~ jeffmartin$ sudo /System/Library/StartupItems/CiscoVPN/CiscoVPN restart Password: Stopping Cisco Systems VPN Driver kextunload: unload kext /System/Library/Extensions/CiscoVPN.kext succeeded Starting Cisco Systems VPN Driver kextload: /System/Library/Extensions/CiscoVPN.kext loaded successfully John from Freedom PA USA #129 Sorry, I don't have a suggestion for you outside of reinstalling the Cisco VPN software. Seems strange I get a blue screen when I attempt to uninstall. Error 51 Cisco Vpn Windows 8 thanks!
As always, if you're not sure what to do or any of this is confusing you should contact your IT department (assuming you have one). Error 51 Unable To Communicate With The Vpn Subsystem Mac A black box will open with a blinking cursor. I have Loepard on my desktop but not my laptop yet and my desktop is at work so I can't test the VPN. Andy Wagers from Bryan / TX / USA #151 | Thursday, July 30, 2009 8:11 AM Thanks for the tip, it worked like a charm.
Thanks man. Error 51 Unable To Communicate With The Vpn Subsystem Windows 8 Be thankful they even bothered to make it for Mac. Eduardo from Buenos Aires/Argentina #234 | Friday, July 22, 2011 12:33 AM Hi guys,! Symptoms: You are starting a Cisco VPN Client and immediately you are getting this error message: Error 51: Unable to communicate with the VPN subsystem.
I'm sure there is a good reason somewhere but there is probably a good compromise that could be worked out where this sort of thing won't be an issue. http://www.firewall.cx/cisco-technical-knowledgebase/cisco-services-tech/1038-cisco-vpn-client-error-51.html When using another user account it doesnt. "Unable to communicate..." I also deactivated the LittleSnitch Firewall and the Sophos Antivirus. Error 51 Unable To Communicate With The Vpn Subsystem Windows 10 Casey Woods from Calgary, AB #55 | Tuesday, February 19, 2008 12:03 PM Thanks! Cisco Vpn Error 51 Windows 10 Helps nothing... 0 Message Expert Comment by:dharnet2009-12-31 Comment Utility Permalink(# a26156373) Cisco VPN Client cannot connect - Error 51 any help 0 Message Expert Comment by:HoribaIT2010-04-06 Comment Utility Permalink(#
I recommend it to everyone! http://gigyahosting1.com/error-51/error-51-cisco-vpn-mac.php Phil B from San Francisco, CA, USA #139 | Wednesday, March 11, 2009 12:49 PM You are awesome. A backup is automatically created before each scan, with the ability to undo any changes in a single click, protecting you against the possibility of PC damage. but this time it occurred again even after a restart. Unable To Communicate With The Vpn Subsystem Windows 8
Locate Cisco Vpn Client Error 51-associated program (eg. To open this port on McAfee SaaS Endpoint Protection 5.2.0 you need to go to Action Menu -> Set Connection Type -> Custom -> Add Approved Service and add/specify TCP port Voila it's working. have a peek here Also, it would seem that Cisco is unable to respect conventions of not putting startup items /System/Library/StartupItems.
Rajah - HORIBA 0 Message Expert Comment by:pcarter20202013-08-02 Comment Utility Permalink(# a39376954) Thanks @ HoribaIT as a full reinstall of the OS was not required. 0 Featured Post Looking for Cisco Vpn Error 56 Thank you and thank you google. http://adam.shand.net/iki/2008/howto_repair_the_cisco_vpn_client/ It's great to see all the suggestions here as well, thanks!
Lisa from Boston, MA #184 | Saturday, April 24, 2010 6:18 AM Outstanding. Found this right away and it worked immediately. In most cases, the "Temporary Files" category will occupy the most disk space. Terminal Window Erik van der Neut from Cambridge, Massachusetts, USA #40 | Thursday, December 13, 2007 1:03 PM Brilliant!
Login. Kei from Fremont, ca, usa #174 | Saturday, February 20, 2010 2:30 PM Great tip and it worked! Enter any administrator passwords (if prompted). http://gigyahosting1.com/error-51/error-51-cisco-vpn.php These were the instructions that I followed that resolved the error "In my case it happened if running the 64-bit kernel (see this Apple support article if you're not sure how
Without any knowledge of any changes to the system, it just started this error message a week ago and I cannot get around it. To use System Restore (Windows XP, Vista, 7, 8, and 10): Click the Start button. Bert Woudwijk from Rotterdam, The Netherlands #132 | Tuesday, January 6, 2009 9:57 PM I have error 51 with Windows XP. The best part is that repairing registry errors can also dramatically improve system speed and performance.