I have a CDU-680 C-motech modem on a Windows 7 box. When I use it to connect to the Internet and then try to use my software VPN, the modem retains itself as the primary DNS. So, I can't resolve DNS names on the internal network.
I looked at the Adapters and Bindings order in Advanced Settings on the control panel. I believe the modem is listed last and is called Remote Access connections. In the registry, I manually changed the bind order to put my VPN connection on top, but when I reconnect the modem, it writes itself to the top of the Bind list (HKLM\System\CurrentControlSet\services\Tcpip\Linkage).
Does anybody know how I can stop the modem from writing itself to the top of the bind list? For giggles, I did make an entry for it in the BindSave String at the bottom of the list to no avail.