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TROUBLESHOOTING

Cannot Connect

Summary

Diagnose cases where Runline U cannot connect to the expected server or environment.

Symptoms

  • Connection-oriented formulas return server or environment errors.
  • U.SUBSCRIBE or U.GET does not receive expected live data.
  • Administration/status formulas indicate no server connection.

Likely Causes

  • The environment parameter does not identify a known environment.
  • The local add-in is not authenticated or cannot reach the network/server.
  • The workbook expects a different server or entity than the current user is configured for.

Step-by-Step Diagnosis

1. Check Environment

What to check: The environment input used by report formulas.

How to check: Inspect formulas with an environment parameter and compare them to known workbook examples.

Expected result: The environment is blank for main or a known configured environment.

2. Check Authentication

What to check: Whether the add-in has credentials for the environment.

How to check: Use existing admin/status formulas such as U.AUTHN, U.CONNECTED_TO_SERVER, or U.SERVER if present in the workbook.

Expected result: Status formulas indicate a usable authenticated connection.

3. Check Topic Scope

What to check: Whether the topic belongs to the expected entity/server.

How to check: Compare U.ENTITY, report group, report name, and server cells.

Expected result: The workbook addresses the same entity and server as the publisher.

Resolution

Correct the environment/server/authentication state before changing report formulas; formula edits will not fix a missing connection.