Getting error in my script - powershell

Question

I keep getting an error message stating
"Exception calling "Start" with "0" argument(s): "Cannot start service RTCRGS on computer 'CORPxxxxxxx.xxxx.net'."
At line:25 char:18
+ $_.Start <<<< ()
+ CategoryInfo : NotSpecified: (:) [], MethodInvocationException
+ FullyQualifiedErrorId : DotNetMethodException"
Any suggestion on why this happens and how to fix it?
$services = "RTCRGS"
$SvrName = 'CORPxxxx.xxxx.xxxx'
Get-Service -ComputerName $SvrName -Name $services | % {
Write-host "$($_.Name) on $SvrName is $($_.Status)"
if ($_.Status -eq 'stopped') {
Write-Host "Starting $($_.Name) in 5 sec..."
Start-Sleep 5
Write-Host "$($_.Name) is Starting, please wait..."
$_.Start()
Write-Host "Checking status of service, please wait for 25 sec..."
Start-Sleep 20
Write-Host "$($_.Name) on $SvrName is $($_.Status)"
} elseif ($_.Status -eq 'running') {
Write-Host "Restaring $($_.Name) in 5 sec..."
Start-Sleep 5
$_.Stop()
Start-Sleep 5
Write-Host "$($_.Name) is Starting, please wait..."
$_.Start()
Write-Host "Checking status of service, please wait for 25 sec..."
Start-Sleep 25
Write-Host "$($_.Name) on $SvrName is $($_.Status)"
}
}

Answer 1

If the service is NOT disabled (and you have checked you can restart it manually) you might be better of with something like this
$services = "RTCRGS"
$SvrName = 'CORPxxxx.xxxx.xxxx'
Get-Service -ComputerName $SvrName -Name $services | ForEach-Object {
Write-host "$($_.Name) on $SvrName is $($_.Status)"
if (#("Stopped","StopPending","Paused","PausePending") -contains $_.Status) {
Write-Host "Starting service $($_.Name), please wait..."
$_.Start()
}
else {
Write-Host "Stopping service $($_.Name)..."
$_.Stop()
# as HAL9256 suggested, perform a loop to see if service has really stopped
do {
# recheck the ACTUAL status, not the status you captured before
$newStatus = (Get-Service -ComputerName $SvrName -Name $_.Name).Status
} while ($newStatus -ne "Stopped")
Write-Host "$($_.Name) is Restarting, please wait..."
$_.Start()
}
Write-Host "Checking status of service, please wait for 25 sec..."
Start-Sleep 25
# here again you should recheck the ACTUAL status, not the status you captured before
$newStatus = (Get-Service -ComputerName $SvrName -Name $_.Name).Status
Write-Host "$($_.Name) on $SvrName is $newStatus"
}
You can read the possible values for 'Status' here