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High severitycapacity

Power BI Refresh Error:
OpenConnectionError

What does this error mean?

A report visual cannot be rendered because the underlying Power BI Premium or Embedded capacity was paused or deleted while the report session was active. The visual displays a failure state and cannot retrieve query results.

Common causes

  • 1A Power BI Premium or Embedded (A-SKU) capacity was paused or scaled down by an administrator while users had reports open
  • 2The capacity was deleted entirely, leaving the workspace without a compute resource
  • 3Auto-pause triggered on an Embedded capacity during an active user session due to inactivity thresholds being met at the capacity level
  • 4A capacity migration or reassignment was performed without draining active sessions first

How to fix it

  1. 1Step 1: Navigate to the Power BI Admin Portal (or Azure Portal for A-SKU capacities) and confirm the target capacity is in a Running state — resume or restart it if it is paused.
  2. 2Step 2: If the capacity was deleted, reassign the affected workspace to an active capacity or switch to Power BI Pro licensing as a temporary measure.
  3. 3Step 3: Ask affected users to refresh or reload the report in their browser, as the visual connection will not automatically recover in the same session once the capacity comes back online.
  4. 4Step 4: Review capacity auto-pause settings in the Azure Portal and increase the idle timeout threshold or disable auto-pause if active sessions are being interrupted during business hours.
  5. 5Step 5: Set up capacity health alerts in MetricSign or Azure Monitor to receive proactive notifications before a capacity enters a paused state.

Frequently asked questions

Will the visual recover automatically when the capacity is resumed?

No — active sessions that encountered OpenConnectionError will not self-heal. Users must reload the report page after the capacity is back in a running state to re-establish the connection.

Does this error occur with Power BI Pro workspaces?

No. Power BI Pro workspaces run on shared Microsoft-managed capacity, which does not have a pause or delete capability exposed to administrators. OpenConnectionError in this context is exclusive to Premium or Embedded (A-SKU) capacities.

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