Why do I have this error message when I try to upgrade Splunk?

[virchenko]

Just a half hour ago I'd upgrade my Splunk Enterprise from 6.6.2 to 6.6.3.
This Splunk install at my laptop (win 10 x64) as a testing work space.
I only ran an installing package of 6.6.3 which have no any actions except "next".
Upgrade was successful and all things work right, except access to app store, which told me this error:

Error connecting: error:14090086:SSL routines:ssl3_get_server_certificate:certificate verify failed. Your Splunk instance is specifying custom CAs to trust using sslRootCAPath configuration in server.conf's [sslConfig] stanza. Make sure the CAs in the appsCA.pem (located under $SPLUNK_HOME/etc/auth/appsCA.pem) are included in the CAs specified by sslRootCAPath. To do this, append appsCA.pem to the file specified by the sslRootCAPath parameter.

We haven't any CA's at our network, it's fully transparent.
What actions should I take to restore health and prevent a repeat of this in the future?
Expert for your help.
Thanks.

[virchenko · Accepted solution]

Hi all.
Solution was very easy.
If any have this error - first of all reload your system (OS).
After reloading you haven't any errors with SA's. (If you have self signed cert or not).
As about previos ansver, I seen it beefore I public my question.
Thanks.
Admin, close my question.

[lfedak_splunk]

Hi @virchenko, some of these solutions for a different version may help you: https://answers.splunk.com/answers/443446/accessing-apps-in-64x-results-in-error-connecting.html