The VP is coming from the authentication machine not being able to connect once the initial connection has been made. I have created a new VPN connection but get the same results. Can it be an ISP related issue? A PPTP connection will definitely fail if GRE is > blocked at the router. Source
Or do you have a dial up connection and a modem configured to answer automatically? This leads em to one of the first things to consider. Port 47 (tcp or udp) has nothing to do with VPN. Whenever we try to connect it display the following message: Verifying username and password... https://support.microsoft.com/en-us/kb/888201
Scothosts 27.268 visualizações 3:08 Set up VPN server on Windows 7 Professional - Duração: 12:02. Fechar Sim, mantê-la Desfazer Fechar Este vídeo não está disponível. I am not sure if I am clear on this?
By submitting you agree to receive email from TechTarget and its partners. Sign up now! Please try again later. We use a multi-NAT for routing service > > > request to internal servers.
Might be worthwhile also installing Ethereal (they call it wireshark Go to Solution 10 Comments LVL 77 Overall: Level 77 VPN 36 Windows Networking 28 Software Firewalls 10 Message Active Does anyone have any suggestions?Software/Hardware used: Windows XP SP3, Microsoft VPN Client Asked: February 25, 20119:40 PM Last updated: June 27, 20134:57 PM Related Questions Cisco VPN Client error message Cisco This software had installed another network interface and that was the problem. http://serverfault.com/questions/110009/vpn-returning-721-error-despite-successful-logins-to-from-other-locations One can connect, the other can't.
Similar Threads RRAS + NAT + VPN == 721 error...Yikes! When to ignore errors that are common and the program recovers from Why does typography ruin the user experience? For whatever > > reason, > > > > this solved our problem with connecting to the RAS server. Using the router's "real" IP and port forwarding works, because the client sends the request to the router's IP.
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We > > have approximately 32 public IP addresses, hence why we use Multi-NAT for > > routing public services to internal servers. this contact form One RAS server is configured to use one router as it's > > > gateway, and the other RAS server uses the second router as it's > gateway. > > > That totally makes sense. Facebook Twitter Google+ YouTube LinkedIn Tumblr Pinterest Newsletters RSS Pular navegação BREnviarFazer loginPesquisar Carregando...
Search for a recent change in any of the interfaces of the machine with troubles. artatomic, have you been able to isolate what services are failing ? Send me notifications when members answer or reply to this question. have a peek here Usually 721 just indicates that GRE is being blocked.
Join Now For immediate help use Live now! All the other services work perfectly with the router's Multi-NAT table. Quoc Nhu Nguyen 435 visualizações 14:36 TECHNET-Deploy PPTP, SSTP, L2TP VPN ON WINDOWS 2008 R2 Part 2 - Duração: 9:19.
For whatever reason, > > this solved our problem with connecting to the RAS server. When the server replies, the > packet goes to the NAT router, is modified by NAT and gets the router's > public IP as the sender's IP. Following Follow VPN issue Thanks! Like I said, it can take up to 6 retries to successfully connect > to > > our RAS servers (up to 30 retries if the remote user is behind a
A PPTP connection will definitely fail if GRE is > > > blocked at the router. Both of these conditions must be met to establish VPN connectivity by using PPTP. Tags: Thanks! Check This Out Both of these conditions are required in order to establish the virtual private network connectivity by using Point-to-Point Tunneling protocol.
Solution: Configure the network firewall between the VPN client and the server to permit GRE. U need to configure network firewall to permit the GRE (Generic Routing Encapsulation) protocol 47 (if u use the same). Thanks. Flag Permalink This was helpful (0) Collapse - Out of curiosity by Kono Kusotare / March 30, 2006 3:26 AM PST In reply to: VPN connection issues are you using a
Sometimes, being a generalist just does not work out so well anymore.As soon as I read your post, I knew that is what I should have thought of near the beginning. I had, as an example, routed ras2.mydomain.com > (188.8.131.52) to some internal IP for PPTP connections only (netopia > routers have PPTP predefined which takes care of TCP port 1723 & This was ONLY an issue with the PPTP service. We no > longer > > > have > > > > to retry up to 6 times to successfully connect. > > > > > > > > Conclusion: >