How to solve REST API error 401 with atlassian account used in basic authentication

[Jean Marie TIZON]

Since the move from JIRA userid to atlassioan account for authentication I get a 401 error calling REST JIRA APIs with basic authentication. 

Can this be related to the @ in my user (atlassian account) ? 

[Dave Theodore _Coyote Creek Consulting_]

What operation are you runing? If it's something in admin interface, you will need to manage cookies.  

[Adam van Dongen]

I'm having the same issue here. Every few days the API returns a 401 header. After resetting the password from Atlassian (to the same as before), it works again. 

Until it's reset again and I ahve to run through the same steps again to fix it.

[Jean Marie TIZON]

Works now from curl :-)

No idea why maybe latest changes on atlassian accounts management helped

[Jean Marie TIZON]

My scripts are developed in php but for problem determination purpose I'm using "curl" from Mac OSx as documented here : https://developer.atlassian.com/cloud/jira/platform/jira-rest-api-basic-authentication/?_ga=1.119452107.353217699.1488354328

[Sohail]

Same issue here.