Dial Up Error Code 756
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to make a dial-up networking connection has been made. This can occur if you have one or more programs http://modemsite.com/56k/duns756.asp set up to automatically make a connection to the Internet. Check the settings for your e-mail, browser and other applications that access the Internet, disabling automatic connection as appropriate. 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 about hiring http://superuser.com/questions/448392/rasdial-error-756-only-solved-by-rebooting 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 Rasdial error 756 only solved by rebooting up vote 1 down vote favorite I have a very frustrating dial up issue with a VPN connection initiated with Rasdial. I have computers (Windows XP Professional SP2) which serve as an unmanned field measuring devices. They automatically initiate a VPN connection with a server over a UMTS connection through the use of a batch file that I call from an application. For the connection to be initiated I use the following batch file: rasdial vpnserver /disconnect rasdial VPNserver stationname password This works fine as long as the UMTS connection is up and healthy. dial up error However if the UMTS drops for whatever reason and then comes back again, I can't get the VPN connection up again. When I run the above batch file I get the error: 756 "connection is already being dialled" I can't manage to get the connection "cleared" .The only way to connect again is through rebooting the whole computer, which is not acceptable. I have tried to expand the batch file as follows; rasdial vpnserver /disconnect route -f ipconfig /release ipconfig /renew arp -d * nbtstat -R nbtstat -RR ipconfig /flushdns ipconfig /registerdns rasdial VPNserver stationname password to try and reset anything which has something to do with networking. Sadly this doesn't have any effect, I still get the same error. There must be something that gets reset by rebooting the machine, but I can't manage to find out what this is and how to do this from the command line. How I can solve this issue without rebooting the whole machine? windows-xp vpn batch-file share|improve this question edited Jul 30 '12 at 5:44 8088 12.3k113554 asked Jul 13 '12 at 8:35 kees 63 1 From a quick look up this problem has been common with XP and Vista... could you use a different VPN client? OpenVPN as a different VPN technology so you're not relying on the MS API? –Big Chris Jul 13 '15 at 15:32 (1) Try to trace the problem as described here. (2