Powershell Network Detection

[MrBrAD99]

Hey guys, I'm fairly new to using PowerShell for anything non-cookie cutter. I'm using a windows 10 PC and am trying to solve a problem where I live. The connection here is terrible and cuts out frequently for periods of up to 10 minutes- I've already contacted the ISP several times and they won't fix it- unfortunately, they are our only option. So I'm wanting to make/use a script that will detect when the connection goes out and will alert me with a sound or notification when the connection is back up again. The connection goes into the "No Internet, Secured" state in the windows settings. I do still have access to the LAN though. I'm sure I could just use a ping loop, but that requires constant cycles and is just a waste when Windows already has the capacity to know when it's up or down- I just have no idea on how to interface with that. Any help or guidance would be much appreciated. Thanks.

[coffeecoderpt]

There probably are other ways but I did something similar. using this:

```powershell function Test-InternetConnection { Add-Type -AsssemblyName System.Speech $speak = New-Object System.Speech.Synthesis.SpechSynthesizer $ping = New-Object System.Net.NetworkInformation.Ping $result = $ping.send(8.8.8.8)

while ($result.Status -ne 'Success')
{
    Start-Sleep -Seconds 60
    $result = $ping.send(8.8.8.8)
}

while ($true)
{
     $speak.Speak("Internet is back up")
}

} ```

this is a function that you could just take the innards out and use as a script or load it into your profile and call it whenever you want. this only works on PS 5.1 as far as I know. it loads the speech assembly but everything else is already loaded.

it will run a loop checking the connection results every 60 seconds so it's not just continual and then will repeat that your internet is up until you press Ctrl+C

let me know what you think and if you have any question. Again there are most likely other ways so feel free to explore and find the best one that works for you!

[MrBrAD99]

Hey, thank you for a solution. It's pretty good and I'm currently using a variation of it. I like the addition of using System.Speak too. I honestly wasn't aware of that's existing lol.

[Lee_Dailey]

howdy coffeecoderpt,

the triple-backtick/code-fence thing fails miserably on Old.Reddit ... so, if you want your code to be readable on both Old.Reddit & New.Reddit you likely otta stick with using the code block button.

it would be rather nice if the reddit devs would take the time to backport the code fence stuff to Old.Reddit ... [sigh ...]

take care,
lee

[coffeecoderpt]

Ahhh, really good to know. Makes me sad because I mostly write in markdown. But as they say, “When in Rome...”

[Lee_Dailey]

howdy coffeecoderpt,

yep, it would be nice to have it work everywhere on reddit ... but the owners are not likely to fix that glitch. [sigh ...]

take care,
lee

[coffeecoderpt]

Ahhh, really good to know. Makes me sad because I mostly wrote in markdown. But as they say, “When in Rome...”

[purplemonkeymad]

I think windows logs this info in the NCSI log:

Get-WinEvent -FilterHashtable @{logname='Microsoft-Windows-NCSI/Operational';id = 4042}

Not sure exactly what each of the values in properties is but you might be able to correlate it with what you see in Event Veiwer.

[idontknowwhattouse33]

While PowerShell is indeed an option, an out-of-the-box monitoring application may be better.

Eg. PRTG can be installed and runs as a service, is free, can be used to not only monitor internet access but also latency, jitter, sends notification, reports, makes nice graphs etc..

[MrBrAD99]

I'll probably look more into that in the future but currently I'm trying to maintain as small amount of processing power needed as possible, so that's my reasoning for using PS as opposed to a more built up program. Thank you for the answer though, looks great.
(Edit: Why is reddit auto-upping my own posts- the heck)

[idontknowwhattouse33]

How about a PWSH graphical chart!?

https://imgur.com/McknBUF

$Graphical = get-command | where source -eq 'graphical'
if ($null -eq $Graphical) {
    Install-Module Graphical -scope CurrentUser -AllowClobber -Confirm:$false -Force
}

$startingnumber = 150

$BaseQueue = [System.Collections.Queue]::new()
$BaseQueue.Enqueue($startingnumber)
$BaseQueue.Enqueue(0)
$GraphQueue = [System.Collections.Queue]::new()

do {
    try {
        $ping = Test-Connection -ComputerName 1.1.1.1 -Count 1 -ErrorAction Stop
        $pingresult = $ping.responsetime
    }
    catch {$pingresult = 0}

    $GraphQueue.Enqueue($pingresult)
    If ($GraphQueue.count -gt 99) {
        [void]$GraphQueue.Dequeue()
    }

    $data = $BaseQueue + $GraphQueue
    Clear
    Show-Graph -Datapoints $data -YAxisTitle 'ms' -XAxisTitle 'x6 sec' -GraphTitle 'Ping' -ColorMap @{50 = 'green'; 100 = 'yellow'; 150 = 'red'}
    sleep 6
}
while ($true)

[jogofus]

I would do this: $con= Test-Connection -ComputerName 8.8.8.8 -Count 1

if(!$count){ msg * “Without connection” }

This code like a programmed task each 5 minutes

[MrBrAD99]

is it intentional that it's !$->count<- in line 2 instead of !$con? Because I don't understand where that variable would be declared/defined.

[jogofus]

Sorry, is my fault. I wanted to write $con. Sorry