Dial Up Networking Error 721
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News Archive • Search • Feedback • Survey • Legal • About Outdated DriversCan cause hardware related Errors. Check your PC Drivers now. Error 721 https://support.microsoft.com/en-us/kb/888201 1. Reboot the machine, verify your Username and Password, and try again. Check for realms, if in NT make sure you have nothing under domain, accept any auth including clear text is checked, and try unchecking Enable PPP LCP extensions. Make sure logon to network isn't checked. Make sure http://www.modemhelp.net/dunerror/error_721.shtml that nothing is typed in the DOMAIN field if this is NT. 2. This is often a POP problem. Try logging onto a different POP. 718 is usually on the ISP's end, but NOT ALWAYS. If there are multiple calls coming into the ISP's callcenter then they could see a problem, but if not, it is probably the user's computer. 3. Nuke the pwl files. 4. Have ISP reset the password. 5. Recreate connectoid. 6. Full uninstall and reinstall of connectoid, network, and DUN/RAS. 7. This can sometimes also be a communications problem caused by heavy line noise or modem problems. Try updating the modem drivers, inits, commas, etc...and have a line noise test performed. 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.
I have w2k pro SP4 and i can't dial-in to my internet provider. When I dial-up then he make conteact with the server, then it is verivying my username and password and then i get http://www.pcreview.co.uk/threads/error-721-dial-up-connection-wtih-a-modem.1727931/ an error 721. I already checked with servicedesk. And it looks like that my computer sends my phoennumber as a password. But i for sure typed the generated password in. Can somebody help me to solve this problem? i am already thinking about downgradgin to w98 se 'Marieke, Mar 30, 2004 #1 Advertisements Robert L [MS-MVP] Guest quoted from http://www.ChicagoTech.net Error 721: Remote PPP peer or computer is not responding. If error 777 you have tried many thing other people suggest like rebooting, reloading hardware and re-installing the VPN or dial in connection, you still get the same problem. I will suggest to check the router settings and make sure TCP Port 1723, IP Protocol 47 (GRE) are opened. Also make sure that the router has the PPTP enabled and not firewall block the traffic. On the RAS server, check the DHCP settings. -- For more error id 777 and other information, go to http://www.ChicagoTech.net Don't send e-mail or reply to me except you need consulting services. Posting on MS newsgroup will benefit all readers and you may get more help. Robert Lin, MS-MVP, MCSE & CNE Networking, Internet, Routing, VPN, Anti-Virus, Tips & Troubleshooting on http://www.ChicagoTech.net This posting is provided "AS IS" with no warranties. "'Marieke" <> wrote in message news:1115401c4165c$dfc1d140$... >I have w2k pro SP4 and i can't dial-in to my internet > provider. When I dial-up then he make conteact with the > server, then it is verivying my username and password and > then i get an error 721. I already checked with > servicedesk. And it looks like that my computer sends my > phoennumber as a password. But i for sure typed the > generated password in. > Can somebody help me to solve this problem? i am already > thinking about downgradgin to w98 se Robert L [MS-MVP], Mar 30, 2004 #2 Advertisements Show Ignored Content Want to reply to this thread or ask your own question? It takes just 2 minutes to sign up (and it's free!). Just click the sign up button to choose a username and then you can ask your own questions on the forum. Sign Up Now! Similar Threads Re: VPN error