Why do I get "Error Class Code: 61" while trying to register a Red Hat Enterprise Linux system to RHN using an Activation Key?

Solution Verified - Updated -

Issue

  • When we register systems to RHN or to a Satellite server using activation key with "rhnreg_ks", we get the following error:
# rhnreg_ks --activationkey=<activation key>
Error Class Code: 61 Error Class Info: Too many systems registered using this registration token

Environment

  • Red Hat Enterprise Linux.
  • Red Hat Network.
  • Red Hat Network Satellite.

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