Tela from Washington DC #43 | Saturday, December 22, 2007 5:00 PM The above solutions have not worked for me but I found another fix that does work. Tried your suggestion of restarting the Cisco VPN from terminal and it worked. Is there a different error message? Let me know if it works. http://vootext.com/cisco-vpn/cisco-vpn-client-mac-error-51-unable-communicate-vpn-subsystem.html
Carina from San Francisco #96 | Friday, August 1, 2008 11:05 AM Thanks for the tip! Jason McCarty from Canada #5 | Monday, May 7, 2007 11:08 PM This did not work for me. Shaun from London, UK #183 | Monday, April 19, 2010 12:42 AM Thanks, did just the trick! Rick from Montana #170 | Saturday, January 30, 2010 2:53 PM Using 10.5.8 on an Intel iMac. http://www.anders.com/cms/192/CiscoVPN/Error.51:.Unable.to.communicate.with.the.VPN.subsystem
I tried the sudo command several times and every time the output says that the command could not be found. Daniel Gauthier from Missoula #91 | Tuesday, July 15, 2008 10:09 PM Cisco VPN Error 51: unable to communicate with VPN subsystem My Windows Fix... a second reinstall and restart has got it working again.
sahrawi from illinois #165 | Saturday, November 7, 2009 5:09 AM it says command not found! The client starts fine and I can click connect but it thinks for a few seconds and then goes back to disconnected (I never get the password challenge popup) Does anyone 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 Cisco Vpn Client Error 403 Unable To Contact Security Gateway Thanks!
None of them worked at all. Cisco Vpn Client Mac Error 51 Unable Communicate Vpn Subsystem I've thankfully not had any of the problems noted in this blog post. works perfectly. http://www.macworld.com/article/1136208/ciscovpn.html It would be handy to note which versions of MacOS each of the commands or suggestions pertain to.
But no luck; my gut is telling me that the traffic on that Client IP address is not getting to/from my MacBook. Cisco Vpn Client Error 51 Windows 7 Thanks. A program run as part of the setup did not finish as expected. For good measure I downloaded and installed, after sticking my old version in an "old" folder (did you know Cisco blocks changing the name of this application?) the newer version 4.9.01.0180
nick from Australia #219 | Thursday, April 7, 2011 5:17 AM I tried following the instructions and inside Terminal i get the error /System/Library/Extensions/CiscoVPN.kext failed to load - (libkern/kext) requested architecture/executable https://coolestguidesontheplanet.com/cisco-error-51-unable-communicate-vpn-subsystem/ I'm posting it for those of you that are more brave than I. Cisco Vpn Client Error 51 Unable To Communicate With The Vpn Subsystem I was so tired about Cisco VPN disconnecting. Cisco Vpn Client Unable To Create The Interprocess Communication Depot Windows 7/8 users experiencing the Cisco VPN Client Error 442 on their system can also visit our Cisco Services & Technologies section to read how to correct the problem.
Found this right away and it worked immediately. Finally!! You're the man. http://vootext.com/cisco-vpn/cisco-vpn-client-error-39-unable-to-import-certificate.html If anyone's got the latest copy of the 4.9+ .dmg they can share please let me know!
Here's the link to the installation of the Cisco VPN client that I'm using (4.9.0180). Cisco Vpn Client Error 51 Windows 8 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 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
hywel from nh #84 | Monday, June 16, 2008 9:55 AM Worked perfectly!! If the built-in Mac OS X client is unavailable, re-configure your Mac to boot into the 32bit kernel. This issue had not been much of a concern until recently, March 2011, Please help ;( I have 230 build of Cisco VPN client but no luck yet. Error 51 Unable To Communicate With The Vpn Subsystem Lion until I read the one asking to disable internet sharing...
I checked my updates as well...the only thing that helps is a second installation and a restart. They provided the sudo ifconfig fw0 down command and that is the only thing that fixed this issue. The PCF to Snow Leopard embedded VPN connection was successful and worked immediately. navigate to this website 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.
Anyways, any help at is greatly appreciated. http://adam.shand.net/iki/2008/howto_repair_the_cisco_vpn_client/ It's great to see all the suggestions here as well, thanks! Thanks for posting it! Thank you.
http://jmilbery.wordpress.com/2011/07/26/cisco-vpn-with-macos-lion/The native OS VPN works fine for me connecting to an ASA. It does seem to happen more often if I’ve slept and woke the machine, or moved it from one defined location to another, but even then, it’s not predictable. Apparently a software update around March of 2007 broke the Cisco VPN software's ability to connect though it wouldn't show the "Error 51" that this page talks about. 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.
A Virus protection program (bit defender) was blocking the VPN client. Awesome it worked! If you have any questions, please contact the BOL Help Desk at (310)267-4357 or at [email protected] Pourya from Incline Village, NV #214 | Saturday, February 19, 2011 8:23 AM As a quick follow up post.
any other tips from anyone???? This has been such an annoyance! Cisco should really take care of this. Through googling, I realized I overlooked a stupid issue that I introduced.
Thanks a lot! Anders from NYC #222 | Saturday, April 9, 2011 6:11 PM When you type your password, you won't see anything on screen. Enzo from http://tweaklearning.wordpress.com #74 | Wednesday, May 21, 2008 9:08 AM works like a charm.. Luke from #53 | Sunday, February 10, 2008 7:30 PM Thank you very much!!
I have a PCF file from the IT people and use RSA SecurId.