Error 721 The Remote Computer Did Not Respnf
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Verizon Error 721 The Remote Computer Did Not Respond
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Error 678 The Remote Computer Did Not Respond
Overflow the company Business Learn more about hiring developers or posting ads with us error 721 vpn windows xp Server Fault Questions Tags Users Badges Unanswered Ask Question _ Server Fault is a question and answer site for system and network error 721 directv administrators. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top VPN returning 721 https://support.microsoft.com/en-us/kb/318009 error despite successful logins to/from other locations up vote 2 down vote favorite I am trying to connect a couple of Win XP desktops at a remote site, to the server (SBS 2008) of a central site, using a PPTP based VPN. When I try to connect, I get the error "Disconnected. Error 721: The remote computer did not respond." Here is the strange part: The remote PCs can successfully dial out http://serverfault.com/questions/110009/vpn-returning-721-error-despite-successful-logins-to-from-other-locations to another server using VPN. Similarly, I can successfully dial into the central site from my work PC. The remote computers are dialling out through a Netgear DG834Gv4 (latest firmware), and the server is behind a Draytek 2820. I have also tried using the Draytek as the VPN endpoint (instead of it doing pass-through), which again worked successfully from my work PC, but gave the same result from the remote site. I can ping the central site from the remote one, no problem. I can also telnet into port 1723 from the remote site. The central server is a domain controller with AD. 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). The remote PCs are on a network which contains another SBS 2008 domain/domain controller/AD/server. However, the remote PCs are using the DG834 as their DNS/DHCP/etc. I and my colleagues are totally stumped - we know each end is fine independently, but for some reason they won't work together. We don't think that it's authentication; it doesn't seem to get that far. There's nothing in either router's firewall which would prevent one the remote IP but not my work IP. The MTU of the DG834 has been change
for Help Receive Real-Time Help Create a Freelance Project Hire for a Full Time Job Ways to Get Help Ask a Question Ask for Help Receive Real-Time Help Create a Freelance Project Hire for a Full https://www.experts-exchange.com/questions/21334514/VPN-question-error-721-Remote-computer-did-not-respond.html Time Job Ways to Get Help Expand Search Submit Close Search Login Join https://www.experts-exchange.com/questions/21178318/VPN-help-error-721-the-remote-computer-did-not-respond.html Today Products BackProducts Gigs Live Careers Vendor Services Groups Website Testing Store Headlines Experts Exchange > Questions > VPN question - "error 721: Remote computer did not respond" Want to Advertise Here? Solved VPN question - "error 721: Remote computer did not respond" Posted on 2005-03-02 Software Firewalls Hardware Firewalls Networking 3 Verified error 721 Solutions 11 Comments 34,429 Views Last Modified: 2013-11-16 I'm trying to setup VPN against a Windows 2003 server. Client is XP pro. The server is behind a router that run NAT. When I'm connecting to the VPN server directly to the internal IP I connnect without problems. Our ISP have setup the NAT on the router to temporarily allow all IP traffic to this external IP. remote computer did But when I try to VPN connect to external IP it hangs with message "verifying username/password" and then I get "error 721: Remote computer did not respond". Any ideas what might be wrong? 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 ISP is letting the traffic IN from the external IP. You need to allow port 1723 TCP for PPTP and GRE, IP Protocol 47. You will also need to port forward 1723 to the Go to Solution 11 Comments LVL 16 Overall: Level 16 Networking 6 Software Firewalls 4 Hardware Firewalls 3 Message Accepted Solution by:samccarthy2005-03-02 You will need to verify that the ISP is letting the traffic IN from the external IP. You need to allow port 1723 TCP for PPTP and GRE, IP Protocol 47. You will also need to port forward 1723 to the Nat IP address of the Windows 2003 server doing the VPN. So, your external client sends a VPN request to the external IP. The router sees this on port 1723 and then will forward t
for Help Receive Real-Time Help Create a Freelance Project Hire for a Full Time Job Ways to Get Help Ask a Question Ask for Help Receive Real-Time Help Create a Freelance Project Hire for a Full Time Job Ways to Get Help Expand Search Submit Close Search Login Join Today Products BackProducts Gigs Live Careers Vendor Services Groups Website Testing Store Headlines Experts Exchange > Questions > VPN help: error 721, the remote computer did not respond Want to Advertise Here? Solved VPN help: error 721, the remote computer did not respond Posted on 2004-10-21 Windows Networking 1 Verified Solution 10 Comments 1,169 Views Last Modified: 2011-10-03 I am trying to connect using VPN to a SBS 2003. I'v enabled port 1723 for VPN. I got the about error message. I'c been searching for solutions and haven't found one. Help me please!!!! Client : window xp Host: SBS 2003 with SonicWall router 0 Question by:lutt Facebook Twitter LinkedIn Google LVL 5 Best Solution bySKULLS_Hawk Is 2003 sbs the VPN endpoint? Is that the device that authenticates? Is that setup correctly ? Possibly the router is configured correctly but there is a problem in another area? Go to Solution 7 Comments LVL 5 Overall: Level 5 Windows Networking 4 Message Expert Comment by:SKULLS_Hawk2004-10-22 Enabled port 1723 on what? I'm assuming a router/firewall of somekind. Does it allow ipsec passthru. You also need to enable GRE 47. On some routers this is IP protocol 47. NOT PORT 47. What equipment are you using for the VPN? I assume all details are setup correctly in the VPN connection. Correct Target IP etc.? 0 Message Author Comment by:lutt2004-10-22 port 1723 and ipsec are enabled. I didn't find GRE 47 or IP protocol 47. Can you give me some detail on how to enable it? 0 LVL 5 Overall: Level 5 Windows Networking 4 Message Expert Comment by:SKULLS_Hawk2004-10-25 Sorry no can't tell you how to enable, not all routers have it, and I don't know what equipment you are using. Does your Router have a VPN passthru option? What is the equipment you are using? If your router has a VPN passthru option that will enable the necessary ports and protocols. Difficult to say without fully knowing your setup. 0 Message Author Comment by:lutt2004-10-25 my router is sonicWall TZ170(Sonic OS Standard 2.2) 0 LVL 5 Overall: Level 5 Windows Networking 4 Message Expert Comment by:SKULLS_Hawk2004-10-25 Well according to the specs of that device, it supports VPN passthru. Have you found the