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This solved my problem. THANK YOU! Any ideas? Thanks so much for your post!!

Only One Worked like a charm :) http://anders.com/guides/native-cisco-vpn-on-mac-os-x/ I am using MBPro 15" (64 Bit) Thanks All and Anders. MacLover from San Jose, CA USA #111 | Friday, September 26, 2008 10:41 AM I had a very stubborn case of "error 51" after I purchased a new IMAC and my works perfectly. swoodie from berkeley #83 | Friday, June 13, 2008 11:06 PM thank you! http://www.macworld.com/article/1136208/ciscovpn.html

Error 51 Unable To Communicate With The Vpn Subsystem Windows 7

Thanks. Richard from Santa Barbara #169 | Friday, December 11, 2009 10:29 AM I'm running Snow Leopard now and the previous "restart" method doesn't work anymore; there's no such program as "/System/Library/StartupItems/CiscoVPN/CiscoVPN". I connect to my cisco-vpn-profile only by pressing "apple+shift+v" and if you want you can connect automatic if you connect to a certain wlan.

It makes no difference if you have Internet Sharing enabled or disabled, if anything is checked, Cisco VPN simply will not work and will give you the "Error 51:Unable to Connect I also repaired the permissions just before using the reset. 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 Error 51 Unable To Communicate With The Vpn Subsystem Windows 10 I reread all of the posts and found the one about getting version 4.9.0.1 at Macupdate.com.

Your solution resolved my issue and made me happy. Cisco Vpn Client Error 51 Windows 8 UCLA Home | UCLA Directory | URSA | MyUCLA | Library | BruinCard | Sitemap Last Updated Fri Jul 22 12:46:58 PDT 2011 'tk' [email protected] Log In Register Home Windows Win keep getting error 51.. here Thanks.

However, I'm trying to run Oracle's jDeveloper (and the embedded OC4J) from home while connected to the VPN, and not having much luck. Error 51 Credit Card Thanks! The PCF to Snow Leopard embedded VPN connection was successful and worked immediately. Then execute: $ sudo ifconfig fw0 down You may have to execute the command twice.

Cisco Vpn Client Error 51 Windows 8

Have you tried switching Wireless / Ethernet? both sudo commands do not work, ifconfig down does not work too and uninstalling and reinstalling either. Error 51 Unable To Communicate With The Vpn Subsystem Windows 7 Cisco VPN is still working fine. Error 51 Cisco Vpn Windows 10 MacUser from Germany #203 | Tuesday, November 9, 2010 3:23 AM Hello, since I had to warmstart my system when I was working with the admin account, my VPN Client (Cisco)

This has usually required me to restart my entire network... Site Tags7 2008 2010 Backup Database Delete Domain Error Excel Firefox IE IIS Move MySQL NETWORK New Newton PHP Pickup Registry Rename Road Self Server Site Soccer SQL Table Trail user All rights reserved. As my preference is to use the VPN on my G5, I searched briefly and found this page (thank you all!). Unable To Communicate With The Vpn Subsystem Windows 8

Last night I got an email from a user with this Error problem, so in the process of making some screenshots, I encountered this "sticky" setting. The kernel log says something about SIOCPROTODETACH_IN6: utun0 error=6 and the system log says IPSec Controller: IKE FAILED. Thank you! I am very happy with how openvpn works - it is stable, fast and easy.

Try to figure out, where is firewall controls for your anti-virus software. Error 51 Unable To Communicate With The Vpn Subsystem Windows 8 just what I needed! If you are having this issue, try running Software Update and make sure you have the latest release and see if that helps.

and it started working again.

Works like a charm. After discussing the Terminal command with a friend, he came up with an even simpler version that works just as well: sudo SystemStarter restart CiscoVPN You’ll need to be an administrative Nice! Cisco Vpn Error 56 Richard from Santa Barbara's sudo line solved all my error 51 problems.

twhittle1 1 month 3 weeks ago 128 views Blog C-Series // Resolve Service Profile Association Failure When Incorrect Server Info Given Tray Stoutmeyer 2 months 2 weeks ago 31 views Discussion I don't have any firewalls on and am not part of any network. It would make life much easier. Gavin from Rockville, MD #113 | Tuesday, October 7, 2008 10:55 PM it didn't work for me.

Apple disclaims any and all liability for the acts, omissions and conduct of any third parties in connection with or related to your use of the site. It worked (on 10.5.3). Jeff Martin from Capitola, Ca #128 | Thursday, December 11, 2008 10:29 AM I have just got a new iMAC , I got a ciscoVPNclient software from my work. I have a PCF file from the IT people and use RSA SecurId.

http://mac.softpedia.com/progDownload/Cisco-VPN-Client-Download-12633.html Jack M. thanks a lot! It had a Resources and Profiles folder. But nothing seems to work...

until I read the one asking to disable internet sharing... 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 Ran Terminal command before first launch. Kevin McMurtrie from Silicon Valley #32 | Friday, November 23, 2007 9:28 PM VPN Client worked in 10.5.1 after I disabled all vlans.

error 51: bla bla fixed it with: sudo ifconfig fw0 down (password required) but this only works until restart then i get the same error until i do it again. phase 5, assert 0 Does anyone know how I can resolve this immediate disconnect? Thank you! I think what was in my Applications folder was an Alias, and perhaps "error 51" means the application is missing parts?

After the next restart the problem was away... Great tip! Broke my Cisco VPN client 4.9.01.0100 which was working fine in 10.5.2. Again, Thanks.

You Rock! Eduardo P.J. Stefano from Italy #34 | Friday, November 23, 2007 11:32 PM I've had the same problem as all you I've solved with sudo ifconfig fw0 down found at http://www.cb1inc.com/2007/06/11/fixing-cisco-vpn-client-4.9-with-parallels-desktop-3.0-on-mac-os-x Neeraj from