721 Modem Error
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Protocol (PPTP) client. You may even get an error 721 after making an unsuccessful attempt to establish a dial-up connection after upgrading your
Error 777 Laptop Windows 7
computer to Microsoft Windows XP from earlier versions. The exact error 721
Error Id=777 D-link
description may vary from 'Remote PPP peer is not responding' to 'the remote computer is not responding'. Cause error id 777 d link modem 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. https://support.microsoft.com/en-us/kb/318009 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 http://www.tech-faq.com/error-721.html 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 Error Number 0x80072ee2 The Microsoft Corporation has designed the Windows Operating System (OS) to query the Microsoft Update ... How to Fix Runtime Error R6025 Even though the Microsoft Windows operating system (OS) is one of the most used in ... Lsass.exe System Error The Lsass.exe System Error is a problem that may affect a computer system running Windows ... rejohn Long Path Tool help me a lot when i have an issue like file deleting or renaming the file. A
occur if there error 777 is a problem at the ISP. Disconnect, then dial back in. If error 721 persists: Try dialing into a different provider or error id 777 access number if available Check the properties of, and/or create a new Connectoid Re-install dial-up networking (DUNS) - check Windows' networking properties. If you still have difficulty, enable and examine the PPP Log. 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.