# Elastic authentication error **URL:** \ **Category:** Elasticsearch\ **Tags:** elastic-stack-security\ **Created:** [December 23, 2021, 4:11pm UTC](https://discuss.elastic.co/t/elastic-authentication-error/292830 "2021-12-23T16:11:37Z")\ **Posts on this page:** 1\ **Showing post:** 5
**Author:** ![Tomo\_M](https://avatars.discourse-cdn.com/v4/letter/t/848f3c/32.png) [@Tomo\_M](https://discuss.elastic.co/u/Tomo_M)\ **Post date:** [December 25, 2021, 1:50pm UTC](https://discuss.elastic.co/t/elastic-authentication-error/292830/5 "2021-12-25T13:50:04Z")
Sorry I don't understand your prerequisites. In the first place, ELK works on its own. How does the plugin relate to your cluster? If you want to remove and revert the once installed plugin, ask to the plugin developer will solve the problem sooner. Anyway, can you access root elasticsearch url and log in to it? If you can and you know the password of user "elastic" (or any other user with appropriate role), you can use "change passwords API" and "create users API". I found command line [elasticsearch-reset-password](https://www.elastic.co/guide/en/elasticsearch/reference/8.0/reset-password.html) tool for 8.0, but it is not supported in 7.15. And I suppose this topic will also help you. > [@X-Pack Authentication issue](https://discuss.elastic.co/t/x-pack-authentication-issue/121632/7): > > This is a revised version of [this post](https://discuss.elastic.co/t/i-lost-the-password-that-has-been-changed/91867/2) Help! I don't have the password for the elastic user! Pre-reading: The password setup in Elasticsearch 6.x depends on a "bootstrap password" that is set on each node in your cluster. This password is documented here: [https://www.elastic.co/guide/en/x-pack/6.2/setting-up-authentication.html#bootstrap-elastic-passwords](https://www.elastic.co/guide/en/x-pack/6.2/setting-up-authentication.html#bootstrap-elastic-passwords) If you do not have a fixed password for the elastic user, then it uses the bootstrap password. X-Pack security includes an API to chan… I hope some of them work for you. --- _[View the full topic](https://discuss.elastic.co/t/elastic-authentication-error/292830)._