Problem with VPN and UMTS modem: Error 633 modem already

Error 633: Modem is already in use or not configured Explicitly reserve the TCP port that is used for the VPN connection. To do this, follow these steps: Click Start, click Run, type regedit.exe in the Open box, and then click OK. Commmon VPN Error Codes and Troubleshoot Guide by VPNSTORE A VPN or a Virtual Private Network is a technology that allows browsing the internet safely and anonymously. When we wish to access the restricted content anywhere on the planet earth, VPN …

If defining the VPN type more precisely doesn't get you a better description of the connection error, you'll have to check through all of the VPN's settings. Make sure you have the right server name. Ask the VPN company for the IP address of the server and enter that instead of a name.

Sep 10, 2015

Jul 13, 2017

VPN error 633 - Microsoft® Community Oct 24, 2014 Error 633: The modem or other connecting device is already