Subscription-manager command fails with "NetworkException: Network error code: 400"

Solution Verified - Updated -

Issue

  • Subscription-manager command fails with Network error code: 400

    [user@system ~]# subscription-manager list --available --all
    Error updating system data on the server, see /var/log/rhsm/rhsm.log for more details.
    [ERROR] rhsmcertd-worker:21003:MainThread @rhsmcertd-worker:148 - 
    Error while updating certificates using daemon
    [ERROR] rhsmcertd-worker:21003:MainThread @rhsmcertd-worker:150 - Network error code: 400
    
  • Yum commands fails with error Network error code: 400

    # yum repolist
    Loaded plugins:  product-id, security, subscription-manager
    Network error code: 400
    repolist: 0
    

Environment

  • Red Hat Enterprise Linux
  • Red hat Subscription Management (RHSM)

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