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    • https://kb.netapp.com/Legacy/ONTAP/7Mode/Unable_to_add_a_system_to_the_7_Mode_Transition_Tool_due_to_error__Failed_to_communicate_with_the_host_using_TLS_or_SSL_protocols
      Applies to 7-Mode Transition Tool When attempting to add the 7-Mode storage controllers for transition, the following error is displayed even after following the 7-Mode Transition Tool Configuration g...Applies to 7-Mode Transition Tool When attempting to add the 7-Mode storage controllers for transition, the following error is displayed even after following the 7-Mode Transition Tool Configuration guide 'Preparing the 7-Mode systems and hosts for transition assessment' section and setting all the required options: In a packet trace, successful Client and Server Hello are exchanged; however, the following errors are displayed: Alert (Level: Fatal, Description: Certificate Unknown)