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http://jmilbery.wordpress.com/2011/07/26/cisco-vpn-with-macos-lion/The native OS VPN works fine for me connecting to an ASA. Joe from NYC #109 | Tuesday, September 23, 2008 6:22 AM Hey, Thank you for the advice. Apple may provide or recommend responses as a possible solution based on the information provided; every potential issue may involve several factors not detailed in the conversations captured in an electronic Unable to make vpn connection. check over here

t from The World #68 | Wednesday, April 9, 2008 9:08 AM Another thing to check - make sure you do not have multiple network interfaces active. I also repaired the permissions just before using the reset. Received the following error message."Error 51: UNable to communicate with the VPN subsystem.Please make sure that you have at least one network interface that is current active and has an IP Anders from Cambridge, MA #240 | Friday, August 12, 2011 7:40 AM @Allen Can you post more of your system log right around the IKE FAILED message? http://www.anders.com/cms/192/CiscoVPN/Error.51:.Unable.to.communicate.with.the.VPN.subsystem

Error 51 Unable To Communicate With The Vpn Subsystem Windows 7

Any suggestions? $ sudo /System/Library/StartupItems/CiscoVPN/CiscoVPN restart sudo: /System/Library/StartupItems/CiscoVPN/CiscoVPN: command not found Anders from RTP #137 | Wednesday, February 11, 2009 10:31 AM Kelly: See whats in that directory: ls /System/Library/StartupItems/CiscoVPN or Cristi from Bucharest, Romania #81 | Thursday, June 12, 2008 3:03 PM Whew, that saved my day, or night so to say. If the above doesn't find it, try: find /* -iname "*cisco*" Worst case, try this: http://anders.com/guides/native-cisco-vpn-on-mac-os-x/ Yves from Japan #228 | Tuesday, June 7, 2011 4:20 AM Very valuable information. I couldn't solve the problem on my own.

Posted in Cisco Services & Technologies 3.4 1 1 1 1 1 Rating 3.40 (5 Votes) TweetApple Mac OS X users are frequently faced with the Cisco VPN Client Error 51 Error 1722: There is a problem with this Windows Installer package. any other tips from anyone???? Error 51 Unable To Communicate With The Vpn Subsystem Windows 10 Pourya from Incline Village, NV #213 | Saturday, February 19, 2011 8:03 AM After trying just about everything on this page to get rid of error 51, this is what I

VPN Service has not been started. p.s. However, after getting the system back up, the client worked again. https://supportforums.cisco.com/discussion/10256526/vpn-client-error-51-windows-xp Jürgen from Berlin #209 | Thursday, December 16, 2010 11:58 AM Thanks a lot, worked perfect Andreia from Lisbon #210 | Friday, December 24, 2010 5:21 AM Ohhhhh!

I have a shortcut that does it ;) Another tip if you want to use Cisco VPN over a PPP connection: Shut down vmware and parallels. Error 51 Credit Card Tags: 1723, 51, Address, Cisco, Client, Error, firewall, interface, IP, McAfee, NETWORK, PPTP, subsystem, VPN 3 Responses to Cisco VPN Client Error 51 - Open Your Firewall bakaleishik 2012/04/18 at 14:48 What finally cut it was to re-install, and after that everything was ok. If you have one, does it crash in some way?

Cisco Vpn Client Error 51 Windows 8

Harry from London #156 | Wednesday, September 2, 2009 10:53 PM @Anders I'll see if IT can help, last few times I just downloaded direct no reg required. https://coolestguidesontheplanet.com/cisco-error-51-unable-communicate-vpn-subsystem/ Start the VPN service .. Error 51 Unable To Communicate With The Vpn Subsystem Windows 7 Brad from Omaha #110 | Thursday, September 25, 2008 9:21 AM Yes!! Error 51 Cisco Vpn Windows 10 Stop Renting Your Cable Modem Just this once, pay attention to your Broadband bill.

Gavin from Rockville, MD #115 | Wednesday, October 8, 2008 9:05 AM Hi Anders, Yes, I dragged the old version from Apps to the trash, emptied it, then installed from a I tried the sudo command several times and every time the output says that the command could not be found. Neeraj from austin #29 | Thursday, November 22, 2007 7:29 AM been trying it .. Also, OSX's built-in VPN client works for many Cisco implementations, so works for a lot of people. Unable To Communicate With The Vpn Subsystem Windows 8

Op de Snow leopard kan u ook de ingebouwde vpn-client gebruiken. swoodie from berkeley #83 | Friday, June 13, 2008 11:06 PM thank you! Voila it's working. sanya from #199 | Tuesday, September 28, 2010 12:56 AM Hello!

The standard line from Cisco is "Get the software from your IT department." to users so I don't know if that helps you. Error 51 Unable To Communicate With The Vpn Subsystem Windows 8 Eduardo from Buenos Aires/Argentina #234 | Friday, July 22, 2011 12:33 AM Hi guys,! I hope i helped some people.

Does anybody know how to solve it?

But no luck; my gut is telling me that the traffic on that Client IP address is not getting to/from my MacBook. You might have a newer version partially installed over an older one. Tyler from #229 | Friday, June 24, 2011 7:56 AM We've noticed on the SandyBridge macs (the ones with Thunderbolt) even the newest VPN client wont start -- just gives the Cisco Vpn Error 56 Erik from Stockholm / Sweden #179 | Sunday, April 4, 2010 1:41 AM THX!

Anders from NYC #222 | Saturday, April 9, 2011 6:11 PM When you type your password, you won't see anything on screen. Florens from Germany Tübingen #146 | Tuesday, April 21, 2009 8:09 PM So i fixed the problem: (Running Mac OS X 10.4.11) First i uninstalled current version with: terminal: sudo /usr/local/bin/vpn_uninstall Kibar from Toronto #168 | Thursday, November 12, 2009 2:55 PM Hi all, Great suggestions but I am running Leopard 10.5.8 and I tried to follow some of the suggestions mentioned greg from wellington NZ #12 | Tuesday, June 26, 2007 1:49 AM i'm working in wellington unforturneatly this hasn't worked anymore ideas Anders from RTP #13 | Tuesday, June 26, 2007

Worked great! It worked (on 10.5.3). Fixed on OS X 10.5.3 with VPN Client 4.9.01 (100). I'm unclear on what exactly Cisco is doing in their software so unfortunately this is somewhat of a black art.

Joe from Mpls, MN #24 | Friday, November 9, 2007 9:49 AM Thanks Steve from VA #25 | Friday, November 9, 2007 7:43 PM Thanks, saved me some headaches here.