$date=Get-Date -format "yyyyMMddHHmmss"
$date_event=Get-Date -format "yyyy.MM.dd HH:mm:ss"
$conn = "internet.mts.ru"

$url = "http://download.yandex.ru/chromium/ChromeSetup.exe"

$client = New-Object System.Net.WebClient
$client.Proxy = $null

$global:duration = 30 # seconds
$global:totalBytes = 0

$File = "$date`_Speed_Internet.Load"

$LocalPathFile = "C:\Test\$File"

# work done handler
Register-ObjectEvent $client DownloadDataCompleted -action {
    $speed = [int]($global:totalBytes*8/1024/$global:duration) # Kilobits per second
    $global:GPRS_Speed = [int]($global:totalBytes*8/1024/$global:duration)
	Write-Host ("DownloadData completed: {0} bytes" -f $global:totalBytes)	
	Write-Host $speed,":OK"
	${C:\Test\Speed_Internet.txt} = "INTERNET_SPEED","OK",$speed,(Get-Date -format "dd.MM.yyyy HH:mm:ss")
    Exit
    } 

#download progress handler
Register-ObjectEvent $client DownloadProgressChanged -action {
        [int]$recived = $eventargs.BytesReceived
        [int]$total   = $eventargs.TotalBytesToReceive
        Write-Host("{0} of {1} : {2} sec" -f $recived, $total, (Get-Date).Seconds) 
        $global:totalBytes = $recived
   }   
   
#####

rasdial /disconnect 
"Разрыв существующего соединения и создание нового"
rasdial $conn  

$client.DownloadDataAsync([uri]$url)
$Elapsed = [System.Diagnostics.Stopwatch]::StartNew()
do {sleep 1} until ( $Elapsed.ElapsedMilliseconds -ge ($global:duration*1000) ) # second*1000 = milliSeconds

$client.CancelAsync()
"Разрыв соединения 2"

rasdial /disconnect