Intermittent 401 Unauthorized reponses from Jira API

We get 401 intermittent unauthorized responses from the API using Basic Authentication (username / password). The calls work most of the time (they return data + HTTP 200) but ~ one out of 4 return 401: Unauthorized.

The status pages all look ok. The issue doesn’t happen when using the API in the browser (that uses the cookie).

The response we get:

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        <title>Unauthorized (401)</title>
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                                <h1>Unauthorized (401)</h1>
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                        <p>Encountered a 
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                            <a href="/secure/MyJiraHome.jspa">Go to Jira home</a>
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1 Like

We found that then we use an API token this issue doesn’t occur.

1 Like

The probleem seems to be fixed, this must have been a temporary issue on the side of Jira.

Hello,
Can you please tell us what have you done on Jira side to fix Intermittent 401 Unauthorized error. We are facing similar problem, it is quite random but I noticed when a request passed, there are no more problem after that. It’s like it failed at 1st try.
So I am wondering if that is not related to cookie or something else with a session
Thanks