The Salt minion log is reporting an error similar to the following:
2024-09-26 21:48:44,694 [salt.crypt :903 ][CRITICAL][13] The Salt Master server's public key did not authenticate!
The master may need to be updated if it is a version of Salt lower than 3006.9, or
If you are confident that you are connecting to a valid Salt Master, then remove the master public key and restart the Salt Minion.
The master public key can be found at:
/etc/salt/pki/minion/minion_master.pub
NOTE: The path mentioned at the end of the message may change based on OS
SaltProject all versions
SaltStack all versions
The public key for the Salt master that is cached on the Salt minion is not the same as the public stored on the Salt master. Compare the file /etc/salt/pki/master/master.pub on the Salt master to the file /etc/salt/pki/minion/minion_master.pub on the Salt minion. These files likely do not match.