Error 721 Vpn Connection Windows Xp
(עברית)المملكة العربية السعودية (العربية)ไทย (ไทย)대한민국 (한국어)中华人民共和国 (中文)台灣 (中文)日本 (日本語) Home20132010Other VersionsLibraryForumsGallery Ask a question Quick access Forums home Browse forums users FAQ Search related threads Remove From My Forums Answered by: Windows XP Pro SP3 - VPN error 721 Windows XP IT Pro > Windows XP Service Pack 3 (SP3) Question 0 Sign in to vote I have a Windows XP Pro SP3 machine. Just starting today it cannot connect to a VPN server it has always been connecting to. User name and password are fine for I can connect to the same server with another computer with the same user name. Nothing on the server side has been changed. No updates have been made on the client side either. It connects to the server and errors out on verifying user name and password. A reset (power off and on) has been done to modem, router, and computer still with no success. Also no error in eventvwr are coming up during the process of failing. Firewall is also off on both the computer and router. VPN pass through is enabled on the Linksys router. Just for troubleshooting purposes I have enabled DMZ for the IP of this computer so all ports are open. Any other ideas of whats going on? Monday, August 05, 2013 6:58 PM Reply | Quote Answers 0 Sign in to vote This has been solved... I know I have checked the windows firewall. However sure enough it was enabled when I decided to check it again. Marked as answer by Hydrazoic Wednesday, August 14, 2013 6:22 PM Wednesday, August 14, 2013 6:21 PM Reply | Quote All replies 0 Sign in to vote One suggestion: If your VPN is using certificates check to see if they have expired. Good luck! Monday, August 05, 2013 7:36 PM Reply | Quote 0 Sign in to vote No not for the VPN. All other certs expire in 2016. Monday, August 05, 2013 8:11 PM Reply | Quote 0 Sign in to vote This has been solved... I know I have checked the windows firewall. However sure enough it was enabled when I decided to check it again. Marked as answer by Hydrazoic Wednesday, August 14, 2013 6:22 PM Wednesday, August 14, 2013 6:21 PM Reply | Quote Microsoft is conducting an online survey to understand your opinion of the Technet Web site. If you choose to participate, the online survey will be presented to you when you leave the Technet Web site.Would you like to participate? Privacy statement © 2016 Microsoft. All rights reserved.Newsletter|Contact Us|Privacy Statement|Terms of Use|Trademarks|Site Feedback TechNet Products IT Resources Downloads Training Support Products Windows Windows Server System
I have FINALLY resolved an ongoing issue with our VPN connections that we have been experiencing for over a year now. I will share these findings with this forum in case others can benefit from our situation. First let me explain the problem. The Problem: It can take up 6 retries for any remote user to successfully created a remote PPTP connection to our servers. Whenever we try to connect it display the following message: Verifying username and password... And it sit there displaying this message for about 30-40 seconds, then it says: "error: 721 The remote computer did not respond." Network Setup: We have two netopia routers on our network. They both have their own separate WAN connection https://social.technet.microsoft.com/Forums/office/en-US/bf4a482f-3f91-43a1-8e57-2029bf508d84/windows-xp-pro-sp3-vpn-error-721?forum=itproxpsp (we use a lot of bandwidth, hence the need for two WAN connections). 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. When PPTP connections are made, the connection comes in and back out the same router (this I made sure). We use a multi-NAT for routing service request to internal servers. FTP, WWW, RDP, PCAnywhere, SSL, PPTP, MAIL, etc...all these services are routed to http://www.pcreview.co.uk/threads/error-721-finally-resolved.1574450/ internal servers/workstations. We have approximately 32 public IP addresses, hence why we use Multi-NAT for routing public services to internal servers. Everything works perfectly, EXCEPT PPTP (VPN) connections. We have struggled with this for a year now. For whatever reason, it struggles to make a successful connection to our RAS servers. 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 Linksys router). The Fix: Today, I decided to try something different. 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 & IP 47) requests to the internal servers. 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 public IP addresses I have NATed. For whatever reason, this solved our problem with connecting to the RAS server. We no longer have to retry up to 6 times to successfully connect. 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 us. This was ONLY an issue with the PPTP service. All the other services work perfectly with the router's Mu
siehst YouTube auf Deutsch. Du kannst diese Einstellung unten ändern. Learn more You're viewing YouTube in German. You can change this preference below. Schließen Ja, ich möchte sie behalten https://www.youtube.com/watch?v=ENqQoDzqRU0 Rückgängig machen Schließen Dieses Video ist nicht verfügbar. WiedergabelisteWarteschlangeWiedergabelisteWarteschlange Alle entfernenBeenden Wird geladen... Wiedergabeliste Warteschlange __count__/__total__ VPN error 721 806.wmv Long Tâm AbonnierenAbonniertAbo beenden115115 Wird geladen... Wird geladen... Wird verarbeitet... Hinzufügen Möchtest du dieses Video später noch einmal ansehen? Wenn du bei YouTube angemeldet bist, kannst du dieses Video zu einer Playlist hinzufügen. Anmelden Teilen error 721 Mehr Melden Möchtest du dieses Video melden? Melde dich an, um unangemessene Inhalte zu melden. Anmelden Statistik 1.376 Aufrufe 0 Dieses Video gefällt dir? Melde dich bei YouTube an, damit dein Feedback gezählt wird. Anmelden 1 0 Dieses Video gefällt dir nicht? Melde dich bei YouTube an, damit dein Feedback gezählt wird. Anmelden 1 Wird error 721 vpn geladen... Wird geladen... Wird geladen... Die Bewertungsfunktion ist nach Ausleihen des Videos verfügbar. Diese Funktion ist zurzeit nicht verfügbar. Bitte versuche es später erneut. Veröffentlicht am 09.03.2012VPN error 721 806Máy Server cài window 7 ultimate . Đã cấu hình Incomming connection .Máy client (Qua internet) cấu hình VPN (PPTP) .router wifi nết nối internet (PPPoe) qua modem planet (để chế độ britging) Đã nat OK (Check bằng http://www.canyouseeme.org/) các cổng 47 , 1723 ...Tuy nhiên client connect thì toàn báo lỗi 721 (trên xp) và 806(trên Win 7)Trong khi máy trong mạng Lan connet VPN thì vẫn bình thường ....Netstat -n trên client thì thấy kết nối dc tới server qua cổng 1723Netstat -n trên server thì cũng thấy ip từ client tới . Kategorie Wissenschaft & Technik Lizenz Standard-YouTube-Lizenz Mehr anzeigen Weniger anzeigen Wird geladen... Autoplay Wenn Autoplay aktiviert ist, wird die Wiedergabe automatisch mit einem der aktuellen Videovorschläge fortgesetzt. Nächstes Video How To Fix Error 800+789 L2TP &How to Setup VPN Connecti