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Vpn Error 721 Remote Computer Did Not Respond

More About Us... Join Now For immediate help use Live now! Verify that you are able to load a web page in the browser. Can a Bridged network be the reason PPTP struggles when NATed > to > > an > > > assigned IP rather than when using the router's IP? check my blog

asked 6 years ago viewed 2268 times active 4 years ago Blog Stack Overflow Podcast #93 - A Very Spolsky Halloween Special Related 3Error 720 on VPN (PPTP) attempt2VPN Error 778: Ask a question, help others, and get answers from the community Discussions Start a thread and discuss today's topics with top experts Blogs Read the latest tech blogs written by experienced We'll email youwhen relevant content isadded and updated. We'll send you an e-mail containing your password.

The type of network they form with their clients is a Bridged network. We no longer > have > > to retry up to 6 times to successfully connect. > > > > Conclusion: > > > > I have NO clue as to Please try again later. Just click the sign up button to choose a username and then you can ask your own questions on the forum.

I don't believe your port forwarding is correct or GRE is not enabled. 0 LVL 2 Overall: Level 2 Networking 2 Hardware Firewalls 1 Message Assisted Solution by:pcavenue2005-03-02 on the All comments welcomed. > > > > ~Frank > > > > > > Frank, Aug 26, 2003 #2 Advertisements Bill Grant Guest Here is what I meant to say. All comments welcomed. > > > > > > > > ~Frank > > > > > > > > > > > > > > > > > > > Therefore, the only difference is that I > > am using a pingable IP address which happens to belong to the router > instead > > of using one of the

Subtracting empty set from another SkyrimSE is Quiet \def inside of \def not visible in titles or captions Movie about encountering blue alien Why does typography ruin the user experience? But it can > > also result from a reply from the server came from a different IP (ie > > different from the IP address the client used to send). Can it be an ISP related issue? I've updated the NIC driver with no success.

So the client is happy. 2. By the way, the > router's > > IP is the only pingable public IP, not that that should make any > difference > > at all. Can a Bridged network be the reason PPTP struggles when NATed to > an > > assigned IP rather than when using the router's IP? Just to clarify.

I would give the router the > first IP address ( and the rest I would use to NAT various > services to internal servers (ftp, www, smtp, pop, rdp, pptp, You may even encounter this error if the modem driver is not compatible with Windows XP. Forum Software © ASPPlayground.NET Advanced Edition current community blog chat Server Fault Meta Server Fault your communities Sign up or log in to customize your list. I decided to use the router's public IP address for PPTP requests, instead of one of the other public IP addresses our ISP assigned us, and simply forward PPTP (TCP 1723

Search for a recent change in any of the interfaces of the machine with troubles. click site other machines on the original network, and another network connect just fine. Everything works perfectly, > > EXCEPT PPTP (VPN) connections. FTP, WWW, RDP, PCAnywhere, SSL, PPTP, MAIL, > > > etc...all these services are routed to internal servers/workstations.

It's only the PPTP service that doesn't seem to like this in our situation, forcing me to use the router's IP address instead of the other 15 static IPs. Which is the most acceptable numeral for 1980 to 1989? The largest Windows Server focused newsletter worldwide. news Intelligence you can learn from, and use to anticipate and prepare for future attacks.

Port 47 (tcp or udp) has nothing to do with VPN. I can also telnet into port 1723 from the remote site. But the reply goes through the same channel as above, so the reply doesn't have this IP in the packet.

In the end I don't know whether it's a router issue (ie, Netopia has problems routing PPTP requests), or a protocol issue (PPTP has problems when NATed), or whatever.

By submitting you agree to receive email from TechTarget and its partners. You need to allow port 1723 TCP for PPTP and GRE, IP Protocol 47. Get Access Questions & Answers ? Products & Platforms Configuration - General Configuration - Security General General Guides and Articles Installation & Planning Miscellaneous Tutorials Product Reviews Publishing Authors Thomas Shinder Marc Grote Ricky M.

Sign Up Now! All the other services work > > > perfectly with the router's Multi-NAT table. All I can tell you is that our specific problem was resolved by using the router's public IP address for PPTP requests and then forwarding that request to our RAS servers Everything works perfectly, EXCEPT PPTP (VPN) connections.

Newer Than: Search this thread only Search this forum only Display results as threads Useful Searches Recent Posts More... If you are using L2TP for... Registration on or use of this site constitutes acceptance of our Privacy Policy. We no longer have to retry up to 6 times to successfully connect.

We don't think that it's authentication; it doesn't seem to get that far. However, I am having trouble understanding your reply. You may also need to check the available ports for your firewall. Join and Comment By clicking you are agreeing to Experts Exchange's Terms of Use.

At some point in the past, the remote PCs were successfully logged onto the domain, so now log into that (but obviously can't connect).