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Auto restart computer if ping fails

Posted on 2014-12-17
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Last Modified: 2015-01-13
We have a remote server (1hr drive) for a surveillance system.  For some reason it randomly goes offline.  The only fix at the moment is to restart.  No error logs at all.  Router works because we can bring up the cameras behind it.  We updated the drivers but its not the best thing to drive out there each time and hope it works better.

I found this batch, but I get the error:   "IP" was unexpected at this time??

If (!(Test-Connection 192.168.20.199 -quiet)) {
    #Write-Host "Not connected"
    Restart-Computer
}
Else {
    #Write-Host "Connected"
}

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So i'm looking for a bat file or something, that I can schedule to run every 10 minutes.  (i know that's frequent, but I don't want the cameras not recording for longer than that.)

Any help is appreciated.
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Question by:Knightsman
5 Comments
 
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Expert Comment

by:Gary Fuqua, CISSP
ID: 40506163
Does the computer lose IP connection?  If so, you should verify that the Ethernet Card isn't going to sleep.   Some NICs have this nuisance property.   Go to Device Manager.  Right Click on Network Card.   Select Properties, Click on Power Management Tab, Uncheck the "Allow the computer to turn off this device to save power" OptionSleep.jpg
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Expert Comment

by:Gary Fuqua, CISSP
ID: 40506179
To answer your original question, I believe that the Test-Connection cmdlet is looking for a computer name, not an IP address.

Test-Connection <computername>

http://technet.microsoft.com/en-us/library/hh849808.aspx
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Author Comment

by:Knightsman
ID: 40506209
Thanks for that, the first check box was checked.  I completely forgot to look there, i assumed when power mode was set to maximum it didn't set those.

I don't have another computer name the server can search for.  I guess I could use one of the cameras.  But if a camera goes down, that would then cause a big problem.  

I'd prefer for it to ping a DNS server, maybe even two.  then restart if ping fails
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Accepted Solution

by:
Kimputer earned 500 total points
ID: 40506855
I'd use this VBscript:

On Error Resume Next

Dim strTarget, strPingResults
strTarget = "192.168.20.199" 'IP address or hostname

Set WshShell = WScript.CreateObject("WScript.Shell")
Set WshExec = WshShell.Exec("ping -n 3 -w 2000 " & strTarget) 'send 3 echo requests, waiting 2secs each
strPingResults = LCase(WshExec.StdOut.ReadAll)
If InStr(strPingResults, "reply from") Then
'	WScript.Echo strTarget & " responded to ping."  

Else
'	WScript.Echo strTarget & " did not respond to ping."
	WshShell.Run "shutdown /r /t 1"
End If

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Expert Comment

by:lionelmm
ID: 40506863
Other possible issues or causes could be a bad port on the switch, router the server is connected to, or the cable itself
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