Unable to open Azure Databricks workspace

Question

I am not able to open the azure data bricks work space. Need your help on it please. I am getting this error 'This adb-7405614186752314.14.azuredatabricks.net page can’t be found'. aAnd I have the workspace in Active state **
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Answer 1

Hi Harshita Gupta,

The error you’re encountering (HTTP 404 on the adb-*.azuredatabricks.net URL) while the workspace shows as Active is typically related to workspace URL resolution or access path issues rather than the workspace itself being unavailable.

Please access the workspace using the correct entry point from the Azure portal instead of the direct URL. Go to your Databricks workspace resource > click Launch Workspace. This ensures the correct regional and tenant context is applied during login.

Also verify that you are signing in with the correct Microsoft Entra ID (Azure AD) account and tenant associated with the workspace. If you have access to multiple directories, switch to the correct directory from the Azure portal and retry.

If the issue persists, clear browser cache or try opening the workspace in an InPrivate/Incognito window, as stale session or cached redirects can sometimes lead to this behavior.

Additionally, confirm that there are no network restrictions (NSG, firewall, private endpoint misconfiguration, or DNS resolution issues) blocking access to the *.azuredatabricks.net domain from your environment.

If all of the above checks are correct and the issue continues, it may indicate a backend workspace URL propagation issue, and retrying after some time typically resolves it.

Let me know if you need help validating tenant or network configuration.

Answer 2

The workspace URL shown (https://adb-7405614186752314.14.azuredatabricks.net) is a per‑workspace URL. A 404 for this URL usually indicates that the browser is not actually reaching a valid Databricks workspace endpoint.

Use these checks and access paths:

1. Confirm the per‑workspace URL from Azure:
   • In the Azure portal, open the Azure Databricks workspace resource.
   • In Overview, copy the value from the URL field and paste it into the browser address bar. This is the per‑workspace URL in the form https://adb-<workspace-id>.<random-number>.azuredatabricks.net/.
2. Verify the workspace is correctly provisioned:
   • In the Azure portal, on the Workspaces page, ensure the workspace provisioning state is Running (not Provisioning, Failed, Banned, or Cancelling).
   • If it is not Running, wait for provisioning to complete or redeploy/fix the deployment as needed.
3. Launch from the Databricks account console instead of the raw URL:
   • Go to the Databricks account console.
   • Select the Workspaces icon.
   • On the row for this workspace, select Open to launch it. This uses the correct per‑workspace URL behind the scenes.
4. If scripts or bookmarks use another URL, update them:
   • Ensure any automation, bookmarks, or links use the per‑workspace URL, not a legacy regional URL. The supported format is adb-<workspace-id>.<random-number>.azuredatabricks.net.

If the workspace shows as Running and launching from the account console still fails with 404, this indicates a backend workspace issue and requires Databricks support to investigate.

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References:

• Per-workspace URLs
• Get identifiers for workspace objects
• Deploy a workspace using the Azure Portal