Vista wired VPN no problem...but wireless can't connect
I have a Dell Vostro 1400 (vista x32) and when I am connected to my router with a cable I have absolutly no problem connecting with my works VPN. But when I am connected wireless on the same AP/router and many others AP/routers, I get time out errors 800 and it never connects. I saw some updates but they are for vista x64 versions. I have been reading many blogs and forums but I can't seem to find the solution. Again never had the problem with XP on this...It is frustrating. Please help me
December 12th, 2007 6:08am

Hi, Thank you for your post. Before we go further, I would like to confirm the following points with you: 1. Is the network topology of the environment: Windows Vista machine AP/router Internet VPN server? 2. Are you using PPTP or L2TP? 3. What authentication method are you using? 4. Can the Windows Vista machine access the Internet when it uses wireless connection? 5. Can the Windows Vista machine ping the VPN Server when it uses wireless connection? 6. What product is used as the VPN Server? Is it a Windows system? 7.Did the VPN Server receive the request from Windows Vista when the issue occurred? In addition, please refer to the information in the following articles to troubleshoot the issue: Troubleshooting Vista VPN problems http://blogs.technet.com/rrasblog/archive/2007/04/08/troubleshooting-vista-vpn-problems.aspx http://blogs.technet.com/rrasblog/archive/2005/11/28/415190.aspx You receive error code 741 when you try to make a PPTP-based VPN connection on a computer that is running Windows Vista http://support.microsoft.com/kb/929857 Hope it helps. I look forward to your reply. Sincerely, Joson Zhou Microsoft Online Community Support
Free Windows Admin Tool Kit Click here and download it now
December 13th, 2007 12:43pm

Please see my markings in red below Joson Zhou - MSFT wrote: Hi, Thank you for your post. Before we go further, I would like to confirm the following points with you: 1. Is the network topology of the environment: Windows Vista machine AP/router Internet VPN server?(Yes, but the problem is again only when I am wireless connected to my router, not when I am connected with a cable) 2. Are you using PPTP or L2TP? (PPTP) 3. What authentication method are you using? (require secured password) 4. Can the Windows Vista machine access the Internet when it uses wireless connection?(YES) 5. Can the Windows Vista machine ping the VPN Server when it uses wireless connection?(YES, packets sent 4, recieved 4 loss 0% ) 6. What product is used as the VPN Server? Is it a Windows system? (firewall appliance named hotbrick.com 1200/2) 7.Did the VPN Server receive the request from Windows Vista when the issue occurred?(yes connection started and stops) In addition, please refer to the information in the following articles to troubleshoot the issue: Troubleshooting Vista VPN problems http://blogs.technet.com/rrasblog/archive/2007/04/08/troubleshooting-vista-vpn-problems.aspx http://blogs.technet.com/rrasblog/archive/2005/11/28/415190.aspx You receive error code 741 when you try to make a PPTP-based VPN connection on a computer that is running Windows Vista http://support.microsoft.com/kb/929857 Hope it helps. I look forward to your reply. Sincerely, Joson Zhou Microsoft Online Community Support
December 13th, 2007 7:01pm

Hi, Thank you for your information. From your reply, I notice that the VPN Server can receive the request from the Windows Vista machine. In this case, is there any event logged in the VPN Server? At the same time, please capture network packets for further research: =============== Log on to the Windows Vista with the local Administrator account. Right-click the Netmon icon and select Run as Administrator. In the Microsoft Network Monitor 3.1 window, click Create a new capture tab. In the new tab, select all the Network Adapters in the Select Networks window. After that, press F10 to start NetMon Try to connect the VPN server to reproduce the issue. Once the error occurs, go back to the Netmon window and press F11 to stop the Netmon on the Windows Vista machine. Press Ctrl+S to save the netmon files. Please capture the network packets with wired connection again in order to compare the normal packets and the abnormal ones. After that, please zip the above two netmon files, rename the zip file using your name and upload the zip file the following space: https://sftasia.one.microsoft.com/choosetransfer.aspx?key=a6eb6fac-c165-4376-a331-123a59e8e1a1 Password: 8aeR6wn#tA Note: Please let me know the IP address of the Windows Vista machine and the VPN Server. Please post a quick note in the current thread to inform me after uploading the information Thanks. Sincerely, Joson Zhou Microsoft Online Community Support
Free Windows Admin Tool Kit Click here and download it now
December 14th, 2007 12:54pm

I can't find the Netmon icon on my laptop !!?? I looked in th administrator tools section and searched for it through the explorer Thnak you for helping me
December 15th, 2007 4:56pm

Hi, Please download NetMon3.1 from the following website and install it on the machine:http://www.microsoft.com/downloads/details.aspx?FamilyID=18b1d59d-f4d8-4213-8d17-2f6dde7d7aac&DisplayLang=en Sorry for missing the step by mistake. In addition, please confirm if there is any event logged in the VPN Server. Thanks. Sincerely, Joson Zhou Microsoft Online Community Support
Free Windows Admin Tool Kit Click here and download it now
December 17th, 2007 12:22pm

Joson, I just uploaded my files as described above. The vpn server ip is 66.168.52.42 and my vista machine is 67.186.130.186 The VPN server does see me come in also wireless, but then it stops and drops away (according to my administrator). So I assume it is also logged. Thanks again
December 17th, 2007 4:22pm

Hi, Thank you for the time and effort you invested on this issue. After checking the Netmon files, I make some analysis based on my findings: 1. When Windows Vista tried to connect VPN Server over wireless connection, the PPTP control session was established. However, Windows Vista machine could not received Outgoing-call-reply from the VPN Server. This means they failed to initialize the session, which resulted in the issue. For your reference, Ive listed the related packets as below: ========================== 1) Start Control Connection Request packet sent from Windows Vista machine: ------------------------------ Frame: + WiFi: [Unencrypted Data] .T...., (I) + LLC: Unnumbered(U) Frame, Command Frame, SSAP = SNAP(Sub-Network Access Protocol), DSAP = SNAP(Sub-Network Access Protocol) + Snap: EtherType = Internet IP (IPv4), OrgCode = XEROX CORPORATION - Ipv4: Next Protocol = TCP, Packet ID = 20729, Total IP Length = 196 + Versions: IPv4, Internet Protocol; Header Length = 20 + DifferentiatedServicesField: DSCP: 0, ECN: 0 TotalLength: 196 (0xC4) Identification: 20729 (0x50F9) + FragmentFlags: 16384 (0x4000) TimeToLive: 128 (0x80) NextProtocol: TCP, 6(0x6) Checksum: 28851 (0x70B3) SourceAddress: 192.168.1.13 DestinationAddress: 66.168.52.42 + Tcp: Flags=...PA..., SrcPort=53619, DstPort=1723, Len=156, Seq=761794292 - 761794448, Ack=3219462649, Win=68 (scale factor not found) - Pptp: Control Message , Start Control Connection Request PPTPTotalLength: 156 (0x9C) PPTPMessageType: Control Message, 1(0x01) MagicCookie: 439041101 (0x1A2B3C4D) - ControlMessage: ControlMessageType: Start Control Connection Request, 1(0x01) Reserved0: 0 (0x0) - PPTPStartControlConnRequestData: ProtocolVersion: 256 (0x100) Reserved1: 0 (0x0) + FramingCapabilities: 1 (0x1) + BearerCapabilities: 1 (0x1) MaximumChannels: 0 (0x0) FirmwareRevision: 0 (0x0) HostName: VendorName: Microsoft 2) Start Control Connection Reply packet received: -------------------------------------- Frame: + WiFi: [Encrypted Data] F..R.E, (I) + LLC: Unnumbered(U) Frame, Command Frame, SSAP = SNAP(Sub-Network Access Protocol), DSAP = SNAP(Sub-Network Access Protocol) + Snap: EtherType = Internet IP (IPv4), OrgCode = XEROX CORPORATION - Ipv4: Next Protocol = TCP, Packet ID = 43232, Total IP Length = 196 + Versions: IPv4, Internet Protocol; Header Length = 20 + DifferentiatedServicesField: DSCP: 8, ECN: 0 TotalLength: 196 (0xC4) Identification: 43232 (0xA8E0) + FragmentFlags: 16384 (0x4000) TimeToLive: 47 (0x2F) NextProtocol: TCP, 6(0x6) Checksum: 27052 (0x69AC) SourceAddress: 66.168.52.42 DestinationAddress: 192.168.1.13 + Tcp: Flags=...PA..., SrcPort=1723, DstPort=53619, Len=156, Seq=3219462649 - 3219462805, Ack=761794448, Win=5840 (scale factor not found) - Pptp: Control Message , Start Control Connection Reply PPTPTotalLength: 156 (0x9C) PPTPMessageType: Control Message, 1(0x01) MagicCookie: 439041101 (0x1A2B3C4D) - ControlMessage: ControlMessageType: Start Control Connection Reply, 2(0x02) Reserved0: 0 (0x0) - PPTPStartControlConnReplyData: ProtocolVersion: 256 (0x100) ResultCode: Successful, 1(0x1) ErrorCode: None, 0(0) + FramingCapabilities: 0 (0x0) + BearerCapabilities: 0 (0x0) MaximumChannels: 1 (0x1) FirmwareRevision: 1 (0x1) HostName: local VendorName: MoretonBay 3) Outgoing Call Request Sent from Windows Vista machine: ------------------------------------------- Frame: + WiFi: [Unencrypted Data] .T...., (I) + LLC: Unnumbered(U) Frame, Command Frame, SSAP = SNAP(Sub-Network Access Protocol), DSAP = SNAP(Sub-Network Access Protocol) + Snap: EtherType = Internet IP (IPv4), OrgCode = XEROX CORPORATION - Ipv4: Next Protocol = TCP, Packet ID = 20732, Total IP Length = 208 + Versions: IPv4, Internet Protocol; Header Length = 20 + DifferentiatedServicesField: DSCP: 0, ECN: 0 TotalLength: 208 (0xD0) Identification: 20732 (0x50FC) + FragmentFlags: 16384 (0x4000) TimeToLive: 128 (0x80) NextProtocol: TCP, 6(0x6) Checksum: 28836 (0x70A4) SourceAddress: 192.168.1.13 DestinationAddress: 66.168.52.42 + Tcp: Flags=...PA..., SrcPort=53619, DstPort=1723, Len=168, Seq=761794448 - 761794616, Ack=3219462805, Win=67 (scale factor not found) - Pptp: Control Message , Outgoing Call Request PPTPTotalLength: 168 (0xA8) PPTPMessageType: Control Message, 1(0x01) MagicCookie: 439041101 (0x1A2B3C4D) - ControlMessage: ControlMessageType: Outgoing Call Request, 7(0x07) Reserved0: 0 (0x0) - PPTPOutgoingCallRequestData: CallID: 17118 (0x42DE) CallSerialNumber: 6 (0x6) MinimumBPS: 300 (0x12C) MaximumBPS: 100000000 (0x5F5E100) BearerType: Any type of channel, 3(0x3) FramingType: Any type of framing, 3(0x3) PacketRecvWindowSize: 64 (0x40) PacketProcDelay: 0 (0x0) PhoneNumberLen: 0 (0x0) Reserved1: 0 (0x0) PhoneNumber: Subaddress: 4) However, there was no reply from the VPN server. 2. The Windows Vista machine did not receive the reply and then the session was terminated after around 20 seconds. 3. I tried to compare the two Netmon files, however, I did not find out anything abnormal in the wireless Netmon file. Based on this scenario, I suggest contacting VPN Server manufacturer to check whether the VPN Server can receive the Outgoing Call Request packets. If so, why doesnt it reply? Thank you for your understanding and cooperation. I look forward to hearing from you. Sincerely, Joson Zhou Microsoft Online Community Support
Free Windows Admin Tool Kit Click here and download it now
December 19th, 2007 1:17pm

This worked for me..... I had a similar problem. VPN worked fine when wired at home, but connected, then disconnected when I went wireless. It also worked in some WiFi hot spots but not always. Nothing was changing with my laptop or the network. I tried tons of setting tweaks, Nothing.. This was driving me nuts. I cannot tell you why this worked (and frankly I don't much care unless I avoid this workaround). I would be connected wired at the office, then simply put my laptop to sleep for the ride home. WhenI gothome., I'd fire up a wireless connection to the INet (which worked fine) then try to establish a vpn connection. Connection confirmed,the logged a "VPN Connection which has terminated. The reason code returned on termination is 829". What seems to work is - rebooting. Yep. For me anyway. I guess my login/connection IDor something was still looking for my wired maps. Then wne I tried to go wireless and VPN, my laptop got confused. By rebooting it was able to get its act together,
February 3rd, 2008 6:19am

Sorry to bring back this old thread, but I have the same problem. We have a Dell Laptop (inspiron 9200) with built-in wireless. We can connect perfectly via a wired connection, but when we switch over to wireless, and attempt to VPN via PPTP to a remote site (running a Linksys RV042 or RV016), the connection is made, acts like its going to work, then drops the connection and says we never got an IP. My linksys reports that it was connected fine and disconnected like normal. I originally thought MTU and I think I remember vista forums saying that the MTU window is now auto-magically adjusted, but I am unsure if that is the actual problem. If we use a windows XP laptop, VPN works just fine via wireless. Any ideas? Connection Topology: Dell Laptop (wireless) -> NetGear wireless Router (dhcp acquired by core router) -> Cisco router -> internet cloud -> Linksys RV042 (DHCP served out by Linksys)
Free Windows Admin Tool Kit Click here and download it now
October 16th, 2008 2:56am

Fo me the final solution was to change the old VPN server to a newer one which allowed my vista vpn to connect wireless as well.
October 16th, 2008 6:34pm

Apparently there was a hotfix for this issue. We applied it to the vista install, and it started working fine.
Free Windows Admin Tool Kit Click here and download it now
October 16th, 2008 7:34pm

This topic is archived. No further replies will be accepted.

Other recent topics Other recent topics