The connection attempt failed because your computer and the remote computer could not agree on PPP control protocol – Case 2 Uninstall/Reinstall the TCP/IP Protocol.
2 ways to solve the issue, but first be SURE your ISP allows VPN ( PPTP, Ikev2 ,…).
Open CMD “Command Prompt” (on Search program Enter “cmd” then you see the Windows cmd)
Now run command below:
netsh int ip reset
Then restart your OS (Windows).
Download the below files (Extract files ZIP) according your Windows version (64bit or 32bit):
For Windows 64bit: 64bit For Windows 32bit: 32bitRun the files and after finishing, Restart your system (Windows).
You can do 2 ways above together, and then restart your Windows.