Error 720 Dun
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• F.A.Q.'s • Basic AT Commands • Access Server Codes • Tech Humor • Links • FREE Error Scan • News Archive • Search • Feedback dun error 678 • Survey • Legal • About Outdated DriversCan cause hardware related Errors. Check your PC Drivers now. Error 720 1. Uninstall and Reinstall dialer, network, and DUN. 2. If NT: Try installing the Netbios interface service. 3. If NT: Try reinstalling the service pack. 4. Refer to manufacturer. This page was last modified on Saturday, 05-Feb-2011 15:11:54 EST. This website is ©1999-Present Bradford Liedel DBA ModemHelp Networks and Web Services. Mason, MI 48854 USA. All rights reserved.
not configured your Dial-up Networking settings to use a protocol supported by the ISP or system you are calling. Check the Server Types tab of your Dial-up connectoid. Most ISP's use TCP/IP dun error 721 protocol, and no others should be checked. There is a screenshot of a Windows 95 windows 10 error 720 connectoid's Server Tab here. Also check the Dial-up Server selection. For most ISP's this will be PPP, although some may support SLIP draytek vpn no ppp control protocols configured or CSLIP. If you have selected TCP/IP as the protocol, and it is not supported by the system you are calling, you may get this error. (For example, a Remote Access Server set up for NetBEUI.) http://www.modemhelp.net/dunerror/error_720.shtml Solution: Configure the Server Types of the DUNS connectoid to match the protocol installed on the remote server. If you are connecting to a server that requires 128-bit encryption and your system doesn't have 128-bit encryption installed, you may get this error. This Microsoft page will detect and recommend 128-bit encryption upgrade. Also see: MS KB Article: Installing RRAS disables 128-bit encryption. The installation of TCP/IP and/or dial-up networking may be damaged. http://www.modemsite.com/56k/duns720.asp Check ControlPanel->Network for TCP/IP assigned to (or bound to) the Dial-up Adapter. You can Remove, then Re-install the TCP/IP protocol (except with newer versions of Windows - see next paragraph). If you have a LAN card in your machine and access the Internet via a modem, unless you use TCP/IP on your LAN, TCP/IP should be assigned (bound) to only the Dial-up Adapter. With Windows XP, you cannot re-install TCP/IP, but you can reset it with the following DOS command: Click Start, then Run..., and put the following in the Open text box (or enter the following from a DOS command prompt which you can get by Start->Run-> cmd) netsh int ip reset resetlog.txt Windows NT: If you have configured RAS to only receive calls, you may receive this error. Go to the Remote Access Service tab on Services from ControlPanel->Network, and configure RAS for dial-out only, or dial-out and receive calls. See this MS KB Article. Windows NT & 2000: This MS KB Article indicates the error (as well as error 611) may have several different causes, including the NETBIOS interface not being installed, or NETBIOS binding disabled. Back to all DUNS errors Home|Links|Send Feedback|Privacy Policy| Report Broken Link Legal Page|Author's Web Sites | Log In Modemsite.com ©1998-2016 v.Richard Gamberg. All rights reserved.
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more http://superuser.com/questions/525602/all-created-vpns-result-in-error-720 about hiring developers or posting ads with us Super User Questions Tags Users Badges Unanswered Ask Question _ Super User is a question and answer site for computer enthusiasts and power users. 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 All created VPNs result in Error 720 up vote 16 down vote favorite 3 dun error I have a few different VPNs I need to connect to. I'm using windows 8 and standard ptpp VPN. Every VPN I have created though results in the same error: Error 720: A connection to the remote computer could not be established You might need to change the network settings for this connection The VPN works in Windows 7 and XP. I'm not sure if this has something to do with my new laptop or if its something with dun error 720 Windows 8 itself. Any help would be greatly appreciated and if there is any extra info I can provide please let me know. Edit: I've tried with virus scanner turned off and windows firewall turned off as well and I still receive the same error message. vpn windows-8 share|improve this question edited Jul 3 '13 at 13:08 nixda 15.9k65094 asked Dec 29 '12 at 0:22 campo 191116 migrated from serverfault.com Dec 29 '12 at 11:37 This question came from our site for system and network administrators. Needs more details. A lot more details. And may be more suitable for SuperUser anyhow... doesn't seem like it's a professional admin problem, at least as described. –HopelessN00b Dec 29 '12 at 0:40 thanks HopelssN00b, I'm not sure what info to provide that will be most helpful, if you let me know what info you need I can try and provide it. I'm happy to move to super user if that will be more appropriate. –campo Dec 29 '12 at 1:13 I don't know either, but look at what you have provided us - basically that a bunch of your PTPP VPNs throw a 720 error when you use Windows 8. Uh, alright, but that doesn't have any information that's going to be much good for troubleshooting. –HopelessN00b Dec 29 '12 at 1:22 add a comment| 8 Answers 8 active