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Error 721 Remote Computer Is Not Responding

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Usually 721 just indicates that GRE is being blocked. Unauthorized reproduction forbidden.

current community blog chat Server Fault Meta Server Fault your communities Sign up or log in to customize your list. You'll be able to ask any tech support questions, or chat with the community and help others. Also make sure that the router has the PPTP enabled and not firewall block the traffic. weblink

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 The router sees this on port 1723 and then will forward that on to the IP address of your server. 0 LVL 10 Overall: Level 10 Message Author Comment by:rj22005-03-02 In the end I don't know > > > whether > > > > it's a router issue (ie, Netopia has problems routing PPTP requests), > or > > a > It has the router's public IP, so it fails. 3.

Error 721 The Remote Computer Did Not Respond

We'll let you know when a new response is added. You may even encounter this error if the modem driver is not compatible with Windows XP. I don't think you really want to know what the output was, but the VPN is once again working. 10 entries were added, 15 were deleted and the rest were reset. Or was this exactly what > > you had interpreted from my previous posting and I am simply missing what > > you're stating?

What's its name? The exact error 721 description may vary from 'Remote PPP peer is not responding' to 'the remote computer is not responding'. So for > example, I might use NAT to redirect WWW which would resolve to 208.38.6.104 > to an internal IP on port 80. http://cisco.com/en/US/tech/tk827/tk369/technologies_configuration_example09186a00800949c0.shtml So if this problem is on the server, how do I fix it?

All the other services work > > > perfectly with the router's Multi-NAT table. Did Umbridge hold prejudices towards muggle-borns before the fall of the Ministry? We have struggled with this for a year > > > now. > > > > For whatever reason, it struggles to make a successful connection to > our > > http://www.howtonetworking.com/vpnissues/error721.htm This connection was working in the past.

They both have their own > > > > separate WAN connection (we use a lot of bandwidth, hence the need for > > two > > > > WAN connections). Are any particular settings on the router needed to make this work? 0 Question by:rj2 Facebook Twitter LinkedIn Google LVL 16 Best Solution bysamccarthy You will need to verify that the Last edited: Sep 24, 2009 ccgeek, Sep 24, 2009 #5 Advertisements Show Ignored Content Want to reply to this thread or ask your own question? Can a Bridged network be the reason PPTP struggles when NATed > to > > an > > > assigned IP rather than when using the router's IP?

Error 721 Vpn

It installs, uninstalls, ... 0xc0000135 Windows error 0xc0000135 is displayed when an application fails to initialize properly. How do hackers find the IP address of devices? Error 721 The Remote Computer Did Not Respond The type of network they form with their clients is a > > Bridged > > > network. Error 721 Vpn Windows Xp I have created a new VPN connection but get the same results.

We > > have approximately 32 public IP addresses, hence why we use Multi-NAT for > > routing public services to internal servers. have a peek at these guys Therefore, the only difference is > that > > I > > > > am using a pingable IP address which happens to belong to the router > > > instead Port 47 (tcp or udp) has nothing to do with VPN. Mariodlg2,790 pts. Error 721 Directv

Sign up now! 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. Whenever we try to connect it display the following message: Verifying username and password... check over here You would need to do a lot of tracing and > sniffing to see what actually happens. > > "Frank" <> wrote in message > news:eN#... > > Thanks Bill, I

The problem is resolved, and thanks! 2,015 pointsBadges: report saturno Mar 1, 2011 11:37 AM GMT Great! More About Us... You need to allow port 1723 TCP for PPTP and GRE, IP Protocol 47.

After that, I had to go in to the Netopia NAT translation menu - show/change MAP list and make sure that the static nat I had set up to translate between

This leads em to one of the first things to consider. If you use IP mapping, the client sends the packet to a pool IP which is > mapped to the RRAS server's LAN IP. We don't think that it's authentication; it doesn't seem to get that far. Related Posts How to Solve "Windows Installer Service Could not be Accessed" Windows Installer is a very important component of all Windows operating systems.

But the reply goes through the same channel as above, so the reply doesn't have this IP in the packet. If so, I apologize. ~Frank "Bill Grant" <> wrote in message news:%... > Hi, > > First off, I am glad to hear you sorted out the problem. 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). this content For whatever > reason, > > > this solved our problem with connecting to the RAS server.

Once I did that, worked like a charm. Submit your e-mail address below. no more errors and officially back in action. Following Share this item with your network:

Conclusion: I have NO clue as to why I have to use the router's public IP address rather than any of the other 31 public IP addresses our ISP assigned to A PPTP connection will definitely fail if GRE is > blocked at the router. For whatever reason, > > this solved our problem with connecting to the RAS server. Don't Worry - I'm here to help you fix it!

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 When I try to connect, I get the error "Disconnected. Simply click the links below for your free download. After spending countless hours on this stupid windows error 721 the remote computer did not respond problem I almost gave up.

For whatever reason, it struggles to make a successful connection to our RAS servers. Can a Bridged network be the reason PPTP struggles when NATed to > an > > assigned IP rather than when using the router's IP? We use a multi-NAT for routing service > > request to internal servers. The type of network they form with their clients is a > > > Bridged > > > > network.

This > > was ONLY an issue with the PPTP service. The central server is a domain controller with AD. Following Follow error 721 Thanks! So for example, I might use NAT to redirect WWW which would resolve to 208.38.6.104 to an internal IP on port 80.

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 We no longer > > have > > > to retry up to 6 times to successfully connect. > > > > > > Conclusion: > > > > > > Remote computer did not respond.