In "Action:" it should be Start a Program then In "Program/Script:" Click Browse and Choose rasdial.exe Its path will appear as it is present inside "System32" folder.Now you need to add name of VPN and credentials in "Add arguments (optional)" in following order "VPN Name" username password. Now click OK and Create Task It will appear Tasks List.
Windows 7 コマンドラインを使ってVPN接続する方法 - 元「なん … Windows 7では、ダイヤルアップとVPN接続を制御するためにはrasdial コマンドを使います。何かのアプリケーションと連携する時に覚えておくと便利です。 Connect to Microsoft VPN in C# Mar 25, 2009 Ivacy 2146762481 Dotras Rasdial Exception 👌LeVPNPros+
PS alternative to rasdial.exe? : PowerShell
RASDIAL (Dial Up Networking) Manage RAS/DUN connections. Dial a RAS connection: RASDIAL entryname [/PHONEBOOK:PhonebookFile] [/PHONE:PhoneNumber] [username [password Auto Start VPN when windows 10 starts Solutions | Experts The VPN works fine but rather than manually start the connection each time I boot my Laptop I would like it to auto start. I've tried using Windows Task Scheduler and rasdial as described in this article but it's failing to start the connection.
補足2 「rasdial VPN接続名 ユーザ名 パスワード」というコマンドでも同様のことはできるが、rasdialコマンドを実行するとコマンドプロンプトの黒画面が毎回立ち上がってしまう（.bat化して@echo offで標準出力抑制してもダメ）ので、5分とか10分ごとに自動接続しにいくタスクを組んでる場合
Nov 01, 2008 Reconnect Windows 10 VPN Automatically - CodeProject VPN Connection Setup. To configure the automatic reconnection of a VPN, user name and password must be stored in the Windows Credential Manager. This behavior is specified during the setup: If the option "Remember my credentials" is checked, Windows will save the user name and password after the first connection of the VPN. AutoVPNConnect download | SourceForge.net May 04, 2019 List of Error Codes for Dial-up Connections or VPN Connections Mar 29, 2017