Relevant versions: This information pertains to Artifactory versions 4.0.2 and above
When troubleshooting Docker errors, it's best to compare what is supposed to happen against what your system is currently experiencing. You can eliminate a great deal of noise by simulating each step your client is taking and examining what HTTP error code is returned by Artifactory. In general, these are the error codes you might encounter and their meaning:
403 and 401: Authentication issue, examine authorization settings
404: Resource not found, check the repository for the resource
400: Incorrect request, use cURL to get reason phrase
50X: Server problem, examine the artifactory.log