invoke-webrequest parameters not supported

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  I am using Powershell

  ====

  PS H:\> $PSVersionTable

  Name                           Value
  ----                           -----
  PSVersion                      5.1.17134.407
  PSEdition                      Desktop
  PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0...}
  BuildVersion                   10.0.17134.407
  CLRVersion                     4.0.30319.42000
  WSManStackVersion              3.0
  PSRemotingProtocolVersion      2.3
  SerializationVersion           1.1.0.1

  =====

  When I invoke the following command ( ip redacted)

   invoke-webrequest www.xxx.yyy.zzz -MaximumRetryCount 2

  I get the following error:

  Invoke-WebRequest : A parameter cannot be found that matches parameter name 'MaximumRetryCount

  ====

  It is important that I be able to specify a timeout because one of the tests "succeeds" after 3 minutes, Browsers don't wait that long.

  Please advise.

  Boyd

  ---

  BDM

  Wednesday, December 12, 2018 2:48 PM