thopkins Posted November 4, 2004 Report Share Posted November 4, 2004 Im having a problem with the VPN for windows 2000. I can only connect on every fourth attempt. The other say the request have timed out. No other computers in the area are having this trouble. Does anyone know anything about this? Quote Link to comment Share on other sites More sharing options...
djohn Posted November 4, 2004 Report Share Posted November 4, 2004 Hi thopkins. Unable to help you with this myself but we have several members who are excellent with networking problems, unfortunately they are not on-line at the moment but will advise as soon as they log on and see your post. :) Quote Link to comment Share on other sites More sharing options...
homecomputeraid Posted November 5, 2004 Report Share Posted November 5, 2004 Does it routinely connect on every 4th attempt? In other words, is it always connecting every 4th time, or is is sporadic?What kind of VPN? Is it a Windows PPTP VPN, or a preconfigured client supplied by your work? Do you have any local firewall software? Do you have a Router/Firewall.To test your Internet connectivity, run an extended Ping as follows:Go to Start, Run, and type cmd in the Open box of the Run window that opens. Then click Ok. This will open a Command Window. In the Command Window, type ping -t www.cisco.com. You should see the following:C:\Documents and Settings\Administrator>ping -t www.cisco.comPinging www.cisco.com [198.133.219.25] with 32 bytes of data:Request timed out.Request timed out.Request timed out.Request timed out.Ping statistics for 198.133.219.25: Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),Of course yours should say Reply From... where mine says Request timed out. (I have a PIX Firewall and have not allowed Ping through). You'll want to get consistent replies. Let it run a while (about 20 or 30 times), and then hit Ctrl-C to stop it. The reply time should be relatively short and quite consistent. If you have a lot of variation there may be a networking problem somewhere.Sorry about all the questions. If you need help finding out any of the information I've asked for, please post it and I'll help. Sincerely, Quote Link to comment Share on other sites More sharing options...
thopkins Posted November 10, 2004 Author Report Share Posted November 10, 2004 IT connect routinely every 4th attempt. It is a VPN pptp connection. I have several routers and a firewall. I have disabled l2tp, file and print sharing, and client for microsoft networks. It still works every 4th time. It acts like its trying l2tp every time even when its diabled. It pings fine. Quote Link to comment Share on other sites More sharing options...
thopkins Posted November 10, 2004 Author Report Share Posted November 10, 2004 to add on to my last post. I believe it has something to do with the NIC card because I have about 10 computers and it only occurs on three. All of which are dell computers the others are a mix from compaq to toshiba then a couple of dell laptops. The dell computers also have 3com NIC cards but one has two NIC on which is integrated and it has the same result. Quote Link to comment Share on other sites More sharing options...
homecomputeraid Posted November 10, 2004 Report Share Posted November 10, 2004 What are the Operating Systems on the problem computers versus the computers that work?What's making you think they're trying to connect using L2TP? There's a free sniffer program called Ethereal is available that might help you. Make sure you download the Windows executable, and the winpcap file. You'll have to install winpcap before installing Ethereal. You can put Ethereal on one of the questionable PC's, run it, and try to start your VPN session. If you're not familiar with the output from a sniffer, it will be a little daunting to look through. Have you ever used one before?Sincerely, Quote Link to comment Share on other sites More sharing options...
thopkins Posted November 12, 2004 Author Report Share Posted November 12, 2004 our whole office has 2000, but I think it has something to do with the NIC cards thats the only thing we can narrow it down too. We just cant find why the NIC card would be doing this. Quote Link to comment Share on other sites More sharing options...
homecomputeraid Posted November 14, 2004 Report Share Posted November 14, 2004 THopkins,You never told me what kind of VPN Connection. What are you VPN'ing to? A Windows 2000 or 2003 Server? A VPN Device like a Cisco VPN Concentrator, or Nortel Contivity? Are you going to a device with its own Client software? Sincerely, Quote Link to comment Share on other sites More sharing options...
thopkins Posted November 15, 2004 Author Report Share Posted November 15, 2004 We have the VPN to a server with windows 2003. I dont know specifics about the server because its half way across the US, but I do know it has its own client software. it is a pptp connection. Quote Link to comment Share on other sites More sharing options...
homecomputeraid Posted November 21, 2004 Report Share Posted November 21, 2004 Are you using preconfigured client software created by the people who own the 2003 Server, or are you setting it up yourself? For a PPTP connection, it can usually be done in Windows manually. Have you tried an extended ping to rule out network issues yet?I'm not too sure what you have to allow with the client and Windows 2003 setup you're using, but I know Nortel's Contivity requires me to open ports 50 and 51, and UDP 500 on firewalls to get a connection. If it's a firewall problem, I'd expect it to happen every time though. Quote Link to comment Share on other sites More sharing options...
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