Lausdahl.com

Windows Vista has again shown a funny feature. It can turn of the components which makes VPN connections work without giving you any valid description other than VPN connection problems.

So if you have a VPN connection on your vista machine which suddenly stopped working and where you know the server still is working this might be a solution. It worked for me anyway:

1. open a command prompt in administrator mode and continue to step 2 or run the batch file below
2. uninstall miniports
   1. netcfg -u ms_l2tp
   2. netcfg -u ms_pptp
3. install them again
   1. netcfg -l %windir%\inf\netrast.inf -c p -i ms_pptp
   2. netcfg -l %windir%\inf\netrast.inf -c p -i ms_l2tp

Windows Vista