Error 721 Remote Ppp Peer Is Not Responding
Protocol (PPTP) client. You may even get an error 721 after making an unsuccessful attempt to establish a dial-up connection after upgrading your computer to Microsoft Windows XP from earlier versions. The exact error 721 description may vary from 'Remote PPP peer is not responding' to 'the remote computer is not responding'. Cause of Error 721 Point-to-Point Tunneling Protocol uses Generic Routing Encapsulation (GRE) for tunneled data and the error may occur if the network firewall does not permit the GRE protocol traffic. The Generic Routing Encapsulation protocol is used along with Point-to-Point Tunneling Protocol to create virtual private networks between the server and the client or between the clients. You may even encounter this error if the modem driver is not compatible with Windows XP. How to fix the Error 721 To resolve this error, you need to configure the network firewall so as to permit the GRE protocol 47. Also, you need to make sure that the firewall permits the TCP traffic on port 1723. Both of these conditions are required in order to establish the virtual private network connectivity by using Point-to-Point Tunneling protocol. Installing the latest Windows XP compatible driver for the modem can also fix the problem in some situations. Follow Us! Rate this article: ★ ★ ★ ★ ★ Error 721, 0 / 5 (0 votes) You need to enable JavaScript to vote Mail this article Print this article Last updated 11 March, 2016. Related Posts Data Error Cyclic Redundancy Check The "Data Error Cyclic Redundancy Check (CRC)" is a problem with the mathematical process the ... How to Fix the Unmountable Boot Volume Error Message in Windows XP A common error that occurs with the Windows XP operating system (OS) that results in ... Windows Protection Error A Windows Protection Error such as "Initializing device
differentOperating SystemWindows98Windows95WindowsMEWindowsNTWindows2000WindowsXPWindowsVistaWindows7Windows8Mac OS-9 Mac OS-X Linspire Common Connection Errors / SolutionsError 718: PPP timeoutError 720: No PPP control protocols configuredError 721: Remote PPP peer is not respondingLet our new Connection Wizard pinpoint your problem!The NetZero Connection Wizard is our newest help tool. Download it today to identify and resolve many common issues that may prevent you from successfully connecting to the Internet.To use the NetZero Connection Wizard, you will need to have a Windows Operating System (other than Windows NT) running on your computer. If you cannot download the NetZero Connection Wizard from your http://www.tech-faq.com/error-721.html computer, simply download it onto a diskette from any computer with Internet access and then install it on the computer you would like to fix.Click here to download the Connection Wizard.If this does not resolve the issue, please follow the steps below:Possible SolutionsA. Change your access numberB. Verify your encryption settingsC. Verify network settingsA. Have you tried another http://www.netzero.net/support/errors/errorppp.htm access number?Note: If you are subscribed to NetZero's Toll-Free service please skip to step B. Your connection may have been dropped due to technical difficulties with the access number you are using. Try connecting to NetZero again. If the problem persists, try using another access number in your area. For instructions on how to change your access number please click here.B. Verify your encryption settingsIf the problem persists, follow the steps below to verify your network settings.Double-click the My Computer icon on your desktop.Double-click the Dial-Up Networking icon.Click once on the NetZero icon to highlight it.From the File menu, select Properties.Select the Server Types tab.Ensure that the option labeled Require encrypted password is NOT checked.Click OK.Click OK again.Retry the NetZero connection.C. Verify Network SettingsClick the Windows Start button, point to Settings and select Control Panel.Double-click the Network icon.Check to see if you have the following components:Client For Microsoft NetworksTCP/IP or TCP/IP > Dial Up AdapterDial-Up Adapter.Note: If you are on a Network or company LAN, contact your system administrator before making any net
is disconnected Error 629: The port was disconnected by the remote machine Error 630: The http://www.seekbroadband.co.uk/help/errorcodes/721.html port was disconnected due to hardware failure Error 631: The port was disconnected http://help.juno.com/support/errors/errors-complete.html?sbrand=JN by the user Error 633: The port is already in use or is not configured ... Error 645: Internal authentication error Error 650: The Remote Access server is not responding Error 651: Your modem (or other connecting device) ... Error 678: There is no answer Error 680: No dial tone Error error 721 691: Access denied because username and/or ... Error 718: PPP timeout Error 721: Remote PPP peer is not respondingbr> Error 797: The modem could not be found This error normally occurs if there is a problem with the ISP's network. Solutions 1. Restart the computer. Allow the operating system to load and make sure the modem is properly connected and initialised. 2. Try uninstalling error 721 remote and reinstalling your Broadband modem. Refer to your modem instruction manual or your ISP if they provided you with the modem. 3. Try connecting after about 15 minutes. If you continue to receive this error you should contact your broadband provider's support helpline. Buying Landline / Cable Broadband Mobile Broadband Broadband Providers Index Dongles Satellite Broadband Help About broadband Troubleshooting Equipment Required Modems & Drivers Complaints / Issues Tools ADSL Availability SDSL Availability BT Speed Tester Jargon Buster Broadband Searches Home Broadband £10 per month Broadband + Phone bundles Broadband + TV bundles No contract Broadband All Broadband Searches More Choosing tipsChoosing a bundle Broadband reviews Hardware reviews Broadband news © Copyright 2005 - 2011, seekbroadband.co.uk About Us Media Centre Site Map Contact Privacy Policy Terms and Conditions Broadband searches: Broadband under £10 per month | Broadband under £15 per month | Broadband + Phone | Broadband + TV | Broadband + TV + Phone | No Contract Broadband (inc. Pay as you go) Mobile Broadband searches: Mobile Broadband Offers | T-Mobile Dongle | 3 Dongle | Vodafone Dongle | Orange Dongle | O2 Dongle
UsSelect a differentOperating SystemWindows98Windows95WindowsMEWindowsNTWindows2000WindowsXPWindowsVistaWindows7Common Errors / SolutionsErrors / Solutions by CategoryBrowsingConnectionEmailJunoPortThe following Error Messages cover all aspects of the Juno Service:Error/Solution - Complete ListingsNumbered ErrorsUnnumbered ErrorsNo Error MessageNumbered Error MessagesAccount Not DetectedAutomatically ReconnectError 02 - Juno software is already runningError 17 - Juno has encountered a problem and needs to closeError 20 - Unable to obtain a stable connectionError 553: Domain is not in my list of RCTP HostsError 602: Port Already Open Error 619: The port is disconnectedError 629: Port disconnected by the remote computerError 630: Port Disconnected Due to Hardware FailureError 631: The Port was Disconnected by the UserError 633: Port already in use or not configured for Remote Access dial outError 645: Internal Authentication ErrorError 650: Server not RespondingError 666: Device not ReadyError 676: The line is busyError 677: A person answered instead of a modemError 678: Remote modem not respondingError 680: There is no dial toneError 691: Username - Password InvalidError 692: Hardware failure in port or attached deviceError 718: PPP timeoutError 720: No PPP control protocols configuredError 721: Remote PPP peer is not respondingError 731: Protocol Not ConfiguredUnnumbered Error Messages - Alphabetical ListingAccess DeniedApplication Cannot ContinueComputer is not receiving a response from the modemConfiguration ErrorConnection Failure - The memberID or password you have entered is incorrectConnection Type ConflictContent Advisor Information is Missing or Has Been Tampered WithCouldn't open FCC FileDial-Up Networking could not negotiate a compatible set of network protocolsDirectX not installedDisable IPX Header CompressionDUN (Dial-up Networking) not installedError in Hhctrl.ocx (when installing Juno) Failed connecting to our serverFailed to automatically enable the proxy settings in Internet Explorer HYBR Error - Poor Network ConnectionHyperText Transfer Protocol ErrorIn order