Sourcetree giving authentication error

[ICNARC Atlassian]

I am getting authenticated error on sourcetree for my bitbucket server account. 

Everytime my bitbucket login credentials changes,  sourcetree stops working and gives authentication error and sometimes it happens just out of blue. I am not sure the cause of the issue, I googled a lot but nothing helped in my case. 

We have setup the bitbucket server at some remote location and have setup the sourcetree on my local machine.  When i try to fetch from remote server it gives me authentication failed error. No matter how many times i refresh my password but it is not working. 

Error I am getting currently is 

Failed to check login for user [myaccount] : You do not have permission to access URL 'http://bibucket.myserver.org/rest/api/1.0/users/myaccount'. Please check the user credentials associated with this account. The request returned with Status code 'Unauthorized'.

[Justin Mele]

Hello, did you ever hear back from anyone on this or figure it out? We are running into the same problem with a single user.