How to make TunnlTo work with a script against a handshake block?

[Vertybird]

Installed WireGuard on my VPS to use it as a VPN, but my ISP is blocking handshakes from WireGuard. To run it I use a script with a random port of the form:

$wgListenPort = 56123
$wgIP = “DEST IP ADDRESS”.
$wgPORT = DEST PORT

$EndPoints = New-Object System.Net.IPEndPoint([System.Net.IPAddress]::Parse([System.Net.Dns]::GetHostAddresses($wgIP)), $wgPORT)) 
$Socket = New-Object System.Net.Sockets.UDPClient $wgListenPort
$SendMessage = $Socket.Send([Text.Encoding]::ASCII.GetBytes(“:)”), 2, $EndPoints)) 
$Socket.Close() 

from this topic https://gist.github.com/httpsx/76a98ea28e6f3a4ffc947e768c0b6c01
When loading the config in TunnlTo, the connection does not go further than a handshake. In the logs every 5 seconds it writes messages like:

2024-11-13 13:04:40 [TUN]: keep_alive_thread: Sending Handshake packet to WireGuard Server success

The connection itself disappears until I turn off TunnlTo. How to solve this problem?