The Wac server responding with a bad answer 500.21 if you try Get-officeWebAppsFarm
Get-OfficeWebAppsFarm : The content type text/html; charset=utf-8 of the response message does not match the content
type of the binding (application/soap+msbin1). If using a custom encoder, be sure that the IsContentTypeSupported
method is implemented properly. The first 1024 bytes of the response were: '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML
1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><title>IIS 7.5 Detailed Error - 500.21 - Internal Server Error</title><style type="text/css"><!--
body{margin:0;font-size:.7em;font-family:Verdana,Arial,Helvetica,sans-serif;background:#CBE1EF;}
code{margin:0;color:#006600;font-size:1.1em;font-weight:bold;}
.config_source code{font-size:.8em;color:#000000;}
pre{margin:0;font-size:1.4em;word-wrap:break-word;}
ul,ol{margin:10px 0 10px 40px;}
ul.first,ol.first{margin-top:5px;}
fieldset{padding:0 15px 10px 15px;}
.summary-container fieldset{padding-bottom:5px;margin-top:4px;}
legend.no-expand-all{padding:2px 15px 4px 10px;margin:0 0 0 -12px;}
legend{color:#333333;padding:4px 15px 4px 10px;margin:4px 0 8px -12px;_margin-top:0px;
border-top:1px solid #EDEDED;border-left:1px solid #EDEDED;border-right:1px solid #969696;
border-bottom:1px solid #969696;background:#E7ECF0;font-weight:bold;'.
At line:1 char:1+ Get-OfficeWebAppsFarm -Verbose+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~+ CategoryInfo : NotSpecified: (:) [Get-OfficeWebAppsFarm], ProtocolException+ FullyQualifiedErrorId : System.ServiceModel.ProtocolException,Microsoft.Office.Web.Apps.Administration.GetFarmCo
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