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Subject: Gemini Enterprise Plus — Custom ADK Agent 300s getting timeout for long running tasks.t #5377

@01anasabu

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@01anasabu

My custom ADK agent deployed on Vertex AI Agent Engine runs correctly — backend completes successfully. However, when invoked from Gemini Enterprise Plus UI, the connection drops at ~300 seconds and shows "regenerate response." While my agent in backend is running.

My questions:
Is there a way to configure my ADK agent when called from Gemini Enterprise UI?
What is the official supported approach for custom agents with tasks >300s in Gemini Enterprise?

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agent engine[Component] This issue is related to Vertex AI Agent Engine

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