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v-hejinyi's avatar
v-hejinyi
New Member
2 months ago
Solved

Data source connection failed due to DMTS_OAuthTokenRefreshFailedError

Situation Data source connection failed, and report visuals do not work as expected in Power BI Service. Root Cause OAuth token refresh fails intermittently on the Power BI server, causing authent...
dataflow
  • GilbertQ's avatar
    GilbertQ
    2 months ago

    Hi v-hejinyi​ 

    I would recommend chatting with your network administrator or the person responsible for the Oauth token issue because sometimes these token expiry dates and times can be configured so if they are changed to be really low this could be affecting your issue and you might need to look at another authentication mechanism such as a service principle, workspace identity if applicable.

FarhanJeelani's avatar
FarhanJeelani
Icon for Super User rankSuper User
2 months ago

Hi v-hejinyi​ ,

Open your semantic model in Edit mode in Power BI Service, then go to Manage Connections and re-enter the required credentials, especially for Dataflows or Lakehouse connections. Save the changes and then try refreshing the semantic model again, either through the Notebook, Pipeline, or directly from the semantic model.