OpenVPN Support Forum

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<#
.SYNOPSIS
    RESET Internet Connection Status on OpenVPN Tap Connector on Windows after restart
	
.DESCRIPTION
    ICS sometimes fails after reboot, so resetting is required. RESET Internet Connection Status on OpenVPN Tap Connector on Windows after reboot.
	
.NOTES
	1) Stops OpenVPN service
	2) Disables ICS on ethernet adapter
	3) Enables ICS on ethernet adapter > tap adapter
	4) Starts OpenVPN service

	Run from Windows Task Scheduler 
	Task Settings: "Begin the task: At Startup", "Delay task for: 1 minute"

	MUST RUN AS ADMINISTRATOR!
	Requires -Version 3.0
	Requires -Version 3.0 -Modules NetAdapter  
	Functions from Mike Robbins: https://mikefrobbins.com/2017/10/19/configure-internet-connection-sharing-with-powershell/
#>


<###   USER VARIABLES   ###>
$TapAdapter   = 'OpenVPN TAP-Windows6'  # Adapter to which ICS is connected
$OVPNSvc      = 'OpenVPNService'        # OpenVPN service name
$GetICSStatus = $True                   # If run in console, will display status after making changes


<###   FUNCTIONS   ###>

Function Get-MrInternetConnectionSharing {
<#
.SYNOPSIS
    Retrieves the status of Internet connection sharing for the specified network adapter(s).
.DESCRIPTION
    Get-MrInternetConnectionSharing is an advanced function that retrieves the status of Internet connection sharing
    for the specified network adapter(s).
.PARAMETER InternetInterfaceName
    The name of the network adapter(s) to check the Internet connection sharing status for.
.EXAMPLE
    Get-MrInternetConnectionSharing -InternetInterfaceName Ethernet, 'Internal Virtual Switch'
.EXAMPLE
    'Ethernet', 'Internal Virtual Switch' | Get-MrInternetConnectionSharing
.EXAMPLE
    Get-NetAdapter | Get-MrInternetConnectionSharing
.INPUTS
    String
.OUTPUTS
    PSCustomObject
.NOTES
    Author:  Mike F Robbins
    Website: http://mikefrobbins.com
    Twitter: @mikefrobbins
#>
    [CmdletBinding()]
    param (
        [Parameter(Mandatory,
                   ValueFromPipeline,
                   ValueFromPipelineByPropertyName)]
        [Alias('Name')]
        [string[]]$InternetInterfaceName
    )
    BEGIN {
        regsvr32.exe /s hnetcfg.dll
        $netShare = New-Object -ComObject HNetCfg.HNetShare
    }
    PROCESS {
        foreach ($Interface in $InternetInterfaceName){
            $publicConnection = $netShare.EnumEveryConnection |
            Where-Object {
                $netShare.NetConnectionProps.Invoke($_).Name -eq $Interface
            }
            try {
                $Results = $netShare.INetSharingConfigurationForINetConnection.Invoke($publicConnection)
            }
            catch {
                Write-Warning -Message "An unexpected error has occurred for network adapter: '$Interface'"
                Continue
            }
            [pscustomobject]@{
                Name = $Interface
                SharingEnabled = $Results.SharingEnabled
                SharingConnectionType = $Results.SharingConnectionType
                InternetFirewallEnabled = $Results.InternetFirewallEnabled
            }
        }
    }
}

Function Set-MrInternetConnectionSharing {
<#
.SYNOPSIS
    Configures Internet connection sharing for the specified network adapter(s).
.DESCRIPTION
    Set-MrInternetConnectionSharing is an advanced function that configures Internet connection sharing
    for the specified network adapter(s). The specified network adapter(s) must exist and must be enabled.
    To enable Internet connection sharing, Internet connection sharing cannot already be enabled on any
    network adapters.
.PARAMETER InternetInterfaceName
    The name of the network adapter to enable or disable Internet connection sharing for.
 .PARAMETER LocalInterfaceName
    The name of the network adapter to share the Internet connection with.
 .PARAMETER Enabled
    Boolean value to specify whether to enable or disable Internet connection sharing.
.EXAMPLE
    Set-MrInternetConnectionSharing -InternetInterfaceName Ethernet -LocalInterfaceName 'Internal Virtual Switch' -Enabled $true
.EXAMPLE
    'Ethernet' | Set-MrInternetConnectionSharing -LocalInterfaceName 'Internal Virtual Switch' -Enabled $false
.EXAMPLE
    Get-NetAdapter -Name Ethernet | Set-MrInternetConnectionSharing -LocalInterfaceName 'Internal Virtual Switch' -Enabled $true
.INPUTS
    String
.OUTPUTS
    PSCustomObject
.NOTES
    Author:  Mike F Robbins
    Website: http://mikefrobbins.com
    Twitter: @mikefrobbins
#>
    [CmdletBinding()]
    param (
        [Parameter(Mandatory,
                   ValueFromPipeline,
                   ValueFromPipelineByPropertyName)]
        [ValidateScript({
            If ((Get-NetAdapter -Name $_ -ErrorAction SilentlyContinue -OutVariable INetNIC) -and (($INetNIC).Status -ne 'Disabled' -or ($INetNIC).Status -ne 'Not Present')) {
                $True
            }
            else {
                Throw "$_ is either not a valid network adapter of it's currently disabled."
            }
        })]
        [Alias('Name')]
        [string]$InternetInterfaceName,
        [ValidateScript({
            If ((Get-NetAdapter -Name $_ -ErrorAction SilentlyContinue -OutVariable LocalNIC) -and (($LocalNIC).Status -ne 'Disabled' -or ($INetNIC).Status -ne 'Not Present')) {
                $True
            }
            else {
                Throw "$_ is either not a valid network adapter of it's currently disabled."
            }
        })]
        [string]$LocalInterfaceName,
        [Parameter(Mandatory)]
        [bool]$Enabled
    )
    BEGIN {
        if ((Get-NetAdapter | Get-MrInternetConnectionSharing).SharingEnabled -contains $true -and $Enabled) {
            Write-Warning -Message 'Unable to continue due to Internet connection sharing already being enabled for one or more network adapters.'
            Break
        }
        regsvr32.exe /s hnetcfg.dll
        $netShare = New-Object -ComObject HNetCfg.HNetShare
    }
    PROCESS {
        $publicConnection = $netShare.EnumEveryConnection |
        Where-Object {
            $netShare.NetConnectionProps.Invoke($_).Name -eq $InternetInterfaceName
        }
        $publicConfig = $netShare.INetSharingConfigurationForINetConnection.Invoke($publicConnection)
        if ($PSBoundParameters.LocalInterfaceName) {
            $privateConnection = $netShare.EnumEveryConnection |
            Where-Object {
                $netShare.NetConnectionProps.Invoke($_).Name -eq $LocalInterfaceName
            }
            $privateConfig = $netShare.INetSharingConfigurationForINetConnection.Invoke($privateConnection)
        }
        if ($Enabled) {
            $publicConfig.EnableSharing(0)
            if ($PSBoundParameters.LocalInterfaceName) {
                $privateConfig.EnableSharing(1)
            }
        }
        else {
            $publicConfig.DisableSharing()
            if ($PSBoundParameters.LocalInterfaceName) {
                $privateConfig.DisableSharing()
            }
        }
    }
}

Stop-Service $OVPNSvc
Set-MrInternetConnectionSharing -InternetInterfaceName Ethernet -LocalInterfaceName $TapAdapter -Enabled $False
If ($GetICSStatus) {Get-MrInternetConnectionSharing -InternetInterfaceName Ethernet, $TapAdapter}

Set-MrInternetConnectionSharing -InternetInterfaceName Ethernet -LocalInterfaceName $TapAdapter -Enabled $True
If ($GetICSStatus) {Get-MrInternetConnectionSharing -InternetInterfaceName Ethernet, $TapAdapter}
Start-Service $OVPNSvc

Code: Select all

push "keepalive 10 120"