Error in Pre-deploy check

[Nawab]

I have 3 new splunk enterprise. 2 are acting as search heads and 1 is acting as deployer.

I have successfully made them as a cluster and can even push user and search configs but when i push app or add-ons from deployer i get below error.

Error in pre-deploy check, uri=https://x.x.x.x8089/services/shcluster/captain/kvstore-upgrade/status, status=401, error=No error

even the password is correct for deployer which is also same for both SHs.

What could be the issue here

PS: I know splunk recommend to use 3 SH and 1 deployer. I tried it as well but have same issue.

[Nawab · Accepted solution]

I found the solution. 
It was Pass4symmkey issue, I had some special charaters in my pass4symmkey due to which there was a difference is passwords.

to check use below commands.

splunk btool server list shcluster --debug | grep -i pass4symmkey ( this will give you your password on spunk)

splunk show-decrypted --value 'pass4symmkey' (this will decrypt the key)

now verify the pass key it will surely be a missmatch.