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SnapCenter plug-in Snapmirror updates failing due to destination SVM access blocking

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snapcenter
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Applies to

  • SnapCenter Plug-in for Windows/SQL/Exchange
  • Usage of Security software on the Windows Hosts, blocking https access (ip address usage)

Issue

When attempting to reach the destination SVM, the https ONTAPI or REST API request fails with an unexpected html output, e.g.:

2026-06-12T12:03:45.7133154+02:00DEBUG SMCore_54720 PID=[4708] TID=[154] ex.Message : The running commandstopped because the preference variable "ErrorActionPreference" orcommon parameter is set to Stop: Error encountered while parsing the response:Unexpected character encountered while parsing value: <. Path '', line 0,position 0., Expected formatted JSON response but got:

 <!doctype html>

               <html>
                   <head>
                       <meta charset='utf-8'>
                       <title>Blocked site</title
                                   <h1 class='red'>Stop!
                                       <br>This website is blocked
                                   </h1>                                   <h4>The administrator of this network hasrestricted access to sites categorized as IPAddress.<br>

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