Cisco Vpn Client Error 51 Mac Os X Lion
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enter a title. You can not post a blank message. Please type your message and try again. lgldsr712 Level 1 (4 points) iPod Q: Cisco VPN and Lion - Error 51 Prior to upgrading to cisco vpn client windows 64 bit Lion there were no issues using Cisco's VPN Client (4.9.01). With Lion, Error
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51 is being returned stating it is unable to communication with the subsystem.Is there a known workaround for this?Thank you! cisco vpn client linux Mac mini, Mac OS X (10.6.8) Posted on Jul 21, 2011 9:17 AM I have this question too by wickdillon,Solvedanswer wickdillon Level 1 (10 points) A: Check out this link: When going to a https://supportforums.cisco.com/discussion/11245456/mac-os-x-lion-and-error-51-help-needed-asap-please 64 bit OS (For me, it broke with Lion) the Cisco VPN no longer works because it is a 32 bit application. http://jmilbery.wordpress.com/2011/07/26/cisco-vpn-with-macos-lion/The native OS VPN works fine for me connecting to an ASA. Conencting to a VPN 3k concentrator can have mixed results, because they haven't updated those things in a while, and they will be end of support from Cisco next year.The OS VPN can be https://discussions.apple.com/thread/3194876?start=0&tstart=0 configured in your network properties, and you get to stay in 64 bit mode. Posted on Jul 30, 2011 1:44 PM See the answer in context Close Q: Cisco VPN and Lion - Error 51 All replies Helpful answers by Warren Lin,★Helpful Warren Lin Jul 21, 2011 4:30 PM in response to lgldsr712 Level 1 (30 points) Jul 21, 2011 4:30 PM in response to lgldsr712 I had the same issue. Someone suggested I hold down the 2 and 3 keys when I restart so that the system will revert back to 32 bit (whatever that means). It worked after I did that. I just need to remember to hold it down whenever I turn the computer on. Or else, I'll have to restart to access the VPN.I'm not sure what gets affected when you do this though. But, I seem to be able to carry on very well. Helpful (1) Reply options Link to this post by lgldsr712, lgldsr712 Jul 21, 2011 6:13 PM in response to Warren Lin Level 1 (4 points) iPod Jul 21, 2011 6:13 PM in response to Warren Lin Many thanks - that did in fact work but as you know it's a bandaid patch.Do
in Mac OS X instead of the CiscoVPN software. Here's a guide that tells you how to convert from CiscoVPN to the native OS X client. If you are running Cisco's VPNClient on Mac OSX, you might be http://www.anders.com/cms/192/CiscoVPN/Error.51:.Unable.to.communicate.with.the.VPN.subsystem familiar with (or tormented by) "Error 51: Unable to communicate with the VPN subsystem". The http://apple.stackexchange.com/questions/17823/how-can-i-make-the-cisco-vpn-client-work-with-lion simple fix is to quit VPNClient, open a Terminal window, (Applications -> Utilities -> Terminal) and type one of the following: (for older versions) sudo /System/Library/StartupItems/CiscoVPN/CiscoVPN restart (for newer versions) sudo kextload /System/Library/Extensions/CiscoVPN.kext and give your password when it asks. This will stop and start the "VPN Subsystem", or in other words restart the CiscoVPN.kext extension. Cisco seems to have problems vpn client when network adapters disappear and reappear, something that happens commonly in Wireless or Dial-up scenerios. Sometimes putting a system to sleep, disconnecting an Ethernet cable or simply reconnecting your wireless will cause CiscoVPN to loose track of the network adapters on the system. Considering that CiscoVPN is typically used by telecommuters, this is an astonishing oversight on Cisco's part. The above hack should side-step all of these issues by causing the CiscoVPN to re-initialize. It makes mac os x one ask, why couldn't Cisco have just put the restart into their client? Or a better idea would be to not reinvent the wheel and use the existing IPSec VPN support in OSX! Am I missing something? EDIT: The MacWorld guys came up with a simpler way to do the same thing: sudo SystemStarter restart CiscoVPN Posted by Anders Brownworth Monday, November 13, 2006 7:25 PM Tweet Comments (269) Jeff from Chicago #1 | Friday, March 23, 2007 6:53 AM Thanks for the tip - this worked like a charm. todd from boston #2 | Thursday, March 29, 2007 10:29 AM you the man - thanks! Tony from Carmel from Carmel #3 | Friday, March 30, 2007 6:49 PM Didn't work but rebooted my computer and the problem went away. Steve from Minneapolis #4 | Friday, May 4, 2007 5:30 PM Nice - works to correct the same issue when running Windows on a Mac (restart the Cisco VPN Service). Jason McCarty from Canada #5 | Monday, May 7, 2007 11:08 PM This did not work for me. I've gotten this error ever since I installed the VPN from cisco. I have the 4.9 version as well. What else might I need to do? Anders from RTP #6 | Tuesday, May 8, 2007 9:50 AM Yep, a friend of mine pointed that out and I have sinc
Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Ask Different Questions Tags Users Badges Unanswered Ask Question _ Ask Different is a question and answer site for power users of Apple hardware and software. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top How can I make the Cisco VPN Client work with Lion? up vote 14 down vote favorite 6 Worked in Snow Leopard and now gives error 51 and the sudo restart system command in Terminal i used to use doesn't work. Any idea? osx lion vpn share|improve this question edited Jul 20 '11 at 16:23 Nathan Greenstein 18.2k1976119 asked Jul 20 '11 at 16:14 carl Oneil 76113 Does Cisco say their app supports Lion - or do you need an upgrade - I would assume that all apps need an upgrade until you see the vendor say otherwise –Mark Jul 20 '11 at 16:23 1 Some information on the specific version of your client software as well as potentially what settings it's using will be needed to answer your question. Have you tried just entering your VPN settings into the Lion VPN software - many times you don't even need the cisco client software. –bmike♦ Jul 20 '11 at 16:25 1 Cisco "AnyConnect VPN Client" works just fine with LION. I guess you mean the literal, Cisco "VPNClient"? –user8306 Jul 25 '11 at 0:14 Carl - Have any of these answers helped you? Have you gotten an updated software from Cisco that addressed the issue in the mean time? –bmike♦ Aug 9 '11 at 20:37 If (like me) you can not obtain Cisco AnyConnect VPN Client from Cisco, you could try a third party alternative. Shimo works for me. –Graham Perrin Aug 16 '11 at 17:46 add a comment| 3 Answers 3 active oldest votes up vote 15 down vote Have you tried using the on-board Cisco VPN Client? I had