Why am I getting error "Failed to contact license master: reason=WARN: path=/masterlm/usage: invalid signature on request"?

[suttonj]

Has anyone seen this error in relation to having your license being disabled every 72 hours?

Failed to contact license master: reason=WARN: path=/masterlm/usage: invalid signature on request

[joshuabiggley]

Did you check out this answer? https://answers.splunk.com/answers/213696/failing-to-add-a-license-slave-to-a-license-master.html

[tskinnerivsec]

I would imagine that you have a mismatch of the pass4SymmKey between the indexer and the license master. This can be set in server.conf :

[general]
pass4SymmKey = mylicense (this string has to be the same between all of the license slaves and the license master)

[widjoyoh]

HI,
I am getting the same error message for one of my indexer, indexer02. There are 2 indexer in my environment, indexer01 and indexer02. Anyone know how to fix this, please.