auto-restart windows 10 wifi hotspot

hotspot-keepalive.ps1

# Be sure to include Ben N.'s await for IAsyncOperation:
# https://superuser.com/questions/1341997/using-a-uwp-api-namespace-in-powershell

Add-Type -AssemblyName System.Runtime.WindowsRuntime
$asTaskGeneric = ([System.WindowsRuntimeSystemExtensions].GetMethods() | ? { $_.Name -eq 'AsTask' -and $_.GetParameters().Count -eq 1 -and $_.GetParameters()[0].ParameterType.Name -eq 'IAsyncOperation`1' })[0]

Function Await($WinRtTask, $ResultType) {
    $asTask = $asTaskGeneric.MakeGenericMethod($ResultType)
    $netTask = $asTask.Invoke($null, @($WinRtTask))
    $netTask.Wait(-1) | Out-Null
    $netTask.Result
}

# ------------------------------------------- #

# https://stackoverflow.com/questions/45833873/enable-windows-10-built-in-hotspot-by-cmd-batch-powershell

$connectionProfile = [Windows.Networking.Connectivity.NetworkInformation,Windows.Networking.Connectivity,ContentType=WindowsRuntime]::GetInternetConnectionProfile()
$tetheringManager = [Windows.Networking.NetworkOperators.NetworkOperatorTetheringManager,Windows.Networking.NetworkOperators,ContentType=WindowsRuntime]::CreateFromConnectionProfile($connectionProfile)

for (;;) {
    # Check whether Mobile Hotspot is enabled
    if ($tetheringManager.TetheringOperationalState -eq "Off") {
        echo ("[{0}] Turning on hotspot" -f (Get-Date -f "yyyy-MM-dd HH:mm:ss"))

        # Start Mobile Hotspot
        Await ($tetheringManager.StartTetheringAsync()) ([Windows.Networking.NetworkOperators.NetworkOperatorTetheringOperationResult])
    }

    Start-Sleep -Seconds (1 * 60)
}

# Stop Mobile Hotspot
#Await ($tetheringManager.StopTetheringAsync()) ([Windows.Networking.NetworkOperators.NetworkOperatorTetheringOperationResult])