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Windows Forum / Windows Vista / Networking / May 2008Help: Need VPN with MS Chap1 under Vista
Hi, I recently upgraded to Vista and do now experience that a VPN connection which worked fine under XP now does not work any more. Under XP the authentication has the value 'MS CHAP'. So I suppose that my VPN ist not working under Vista as MS has decided to not include MS CHAP v1 any more. However I need this VPN connection and the provider is not able to change the authentication method. Is there any way to bring vista to use MS CHAP v1? Or can somebody please reccommend a third-party VPN-Client which supports MS CHAP v1? Or is the final solution really to reinstall XP? Many, many thanks for helpful answers, Regards, Bob This how to may help. Please post back with the result. How to disable PAP, CHAP and MS ... In the Advanced Security Settings dialog box, click to either enable or disable the options for PAP, CHAP and MS-CHAP v2, and then click OK. ... www.chicagotech.net/netforums/viewtopic.php?t=1697  SignatureBob Lin, MS-MVP, MCSE & CNE Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com > Hi, > [quoted text clipped - 12 lines] > Regards, > Bob On 19 Mai, 23:24, "Robert L. \(MS-MVP\)" <findem...@chicagotech.net> wrote: > This how to may help. Please post back with the result. > How to disable PAP, CHAP and MS ... > In the Advanced Security Settings dialog box, click to either enable > or disable the options for PAP, CHAP and MS-CHAP v2, and then click OK. ... > www.chicagotech.net/netforums/viewtopic.php?t=1697 Hi Bob, I have already tried each single protocol that's available there (PAP, CHAP and MS CHAP V2). Unfortunately it's not working as CHAP is as far as I know not identical to MS CHAP V1 which I need. My credentials are definitely right and I have no clue why vista is unable to make the desired connection if it isn't the missing MS CHAP v1. I chose the setting that vista shall not terminate the connection if no encryption is made and I also deselected als protocols but IP4. So I think it must be the missing MS CHAP V1. Thank you for your answer, Bob Here is the official take of MS CHAP V1 from MS... http://blogs.technet.com/rrasblog/archive/2007/04/08/troubleshooting-vista-vpn-p roblems.aspx SignatureAl Jarvi (MS-MVP Windows - Desktop User Experience) Please post *ALL* questions and replies to the news group for the mutual benefit of all of us... The MS-MVP Program - http://mvp.support.microsoft.com This posting is provided "AS IS" with no warranties, and confers no rights... How to ask a question http://support.microsoft.com/KB/555375 > I have already tried each single protocol that's available there (PAP, > CHAP and MS CHAP V2). Unfortunately it's not working as CHAP is as far [quoted text clipped - 7 lines] > Thank you for your answer, > Bob hi bob, on your vpn connection go to proerties, then click security, then click the settings tab in the allow these protocols make sure all the protocls there are selected. also in the data encryption field make sure optional encryption is selected. Remember Vista Doesnt support MS-CHap .. Check this link 'ms-chap Resources on TechRepublic' (http://search.techrepublic.com.com/search/ms-chap.html) Hope this helps Cheers !! Signaturejohn_cena -Shihan Sylvester Pietersz- -(MCP,MCSA,MCSE+Security,MCSE+Messeging- -MCTS,MCITP)- -Systems -::-Engineer / Consultant Trainer- :: > hi bob, > on your vpn connection go to proerties, then click security, then [quoted text clipped - 18 lines] > -MCTS,MCITP)- > -Systems -::-Engineer / Consultant Trainer- :: Unfortunately this does not help. Seems like I am really unable to establish the VPN connection with board equipments under Vista... Does anybody know a client that is able to establish VPN-Connections with MS CHAP v1? Hi Bob, I have one Soulation for you, you can download Microsoft Virtual PC 2007 free From Microsoft.com, and then Install Windows Xp on it and then you could use the VPN feature without any problem. Hope this helps Cheers !! Signaturejohn_cena -Shihan Sylvester Pietersz- -(MCP,MCSA,MCSE+Security,MCSE+Messeging- -MCTS,MCITP)- -Systems -::-Engineer / Consultant Trainer- :: > Hi Bob, > [quoted text clipped - 13 lines] > -MCTS,MCITP)- > -Systems -::-Engineer / Consultant Trainer- :: That's a good idea. Not a perfect solution but hopefully a good workaround. Regards, Bob |
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