Fabric Data Agent Issues

rtabitRefuel — Tue, 10 Feb 2026 13:15:26 GMT

I can't open my fabric data agent in the browser this morning it spins for a few minutes and gives me this error. This happen on agents, some in different workspaces.

Error loading data agent configuration.
Request failed with 500(Internal Server Error): {"error":{"code":"UnknownError","pbi.error":{"code":"UnknownError","parameters":{},"details":[]}}}

Sometimes it will connect to agent in notebook using sdk, but sometimes give me this error:

fetch access token error, f08ae471-affd-474b-89a5-4d007272d077 status code: 504, content: b'{"result":"DependencyError","errorId":"GatewayTimeout","errorMessage":"Request timed out while making proxy call. Request to endpoint : TridentManagementService failed with Exception : The delegate executed asynchronously through TimeoutPolicy did not complete within the timeout.. TraceId : 70e5ac62-e7fa-421c-b494-b204dd0d9507 | client-request-id : f08ae471-affd-474b-89a5-4d007272d077. Error Component : TridentManagementService"}'
failed to get ml token
Traceback (most recent call last):
File "/home/trusted-service-user/cluster-env/trident_env/lib/python3.11/site-packages/synapse/ml/fabric/token_utils.py", line 175, in _get_access_token_direct_call
return TokenServiceClient().get_access_token(resource)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/trusted-service-user/cluster-env/trident_env/lib/python3.11/site-packages/synapse/ml/fabric/token_utils.py", line 495, in get_access_token
raise Exception('Fetch access token error')
Exception: Fetch access token error

FabricHTTPException: 401 Unauthorized for url: https://api.powerbi.com/powerbi/globalservice/v201606/clusterdetails
Headers: {'Cache-Control': 'no-store, must-revalidate, no-cache', 'Pragma': 'no-cache', 'Transfer-Encoding': 'chunked', 'Content-Type': 'application/octet-stream', 'Strict-Transport-Security': 'max-age=31536000; includeSubDomains', 'X-Frame-Options': 'deny', 'X-Content-Type-Options': 'nosniff', 'RequestId': '20423195-5a38-4203-b983-10c2a8491339', 'Access-Control-Expose-Headers': 'RequestId', 'Date': 'Tue, 10 Feb 2026 12:18:20 GMT'}

When it does connect, it will fail on sdk evaluate_data_agent, giving me this error:

FabricHTTPException: 500 Internal Server Error for url: https://3f2a8ec160b146b8a6e77b77b784dcdf.pbidedicated.windows.net/webapi/capacities/3f2a8ec1-60b1-46b8-a6e7-7b77b784dcdf/workloads/ML/AISkill/Automatic/v1/workspaces/69edd0c1-f659-4164-ae83-061a564f6cc8/artifacts/64060347-15e3-4540-9dd0-6c55925b396b/aiassistant/threads/fabric?agent=aiskill&stage=production&client=dataagentsdk&tag=562120ce-1920-477a-a2ba-e48d98445a2c&scenario=aiskill
Error: {"code":"NoAvailableCoreService","subCode":0,"message":"An internal error occurred.","timeStamp":"2026-02-10T12:09:21.3118432Z","httpStatusCode":500,"hresult":-2147467259,"details":[{"code":"RootActivityId","message":"427c7e63-bb62-426e-82a0-08cfa5d26759"},{"code":"Param1","message":"There are no available core services for f64eastus2ncharleston,ML,"}]}
Headers: {'Content-Length': '355', 'Content-Type': 'application/json; charset=utf-8', 'Strict-Transport-Security': 'max-age=31536000; includeSubDomains', 'x-ms-root-activity-id': '427c7e63-bb62-426e-82a0-08cfa5d26759', 'x-ms-current-utc-date': '2/10/2026 12:09:21 PM', 'Date': 'Tue, 10 Feb 2026 12:09:20 GMT'}

I also can not create a new data agent. When I am able to connect to data agent in notebook via sdk, I am able to run

evaluate_few_shots successfully.

Re: Fabric Data Agent Issues

rtabitRefuel — Tue, 10 Feb 2026 14:47:05 GMT

It has fixed itself.

Re: Fabric Data Agent Issues

v-echaithra — Wed, 11 Feb 2026 06:03:10 GMT

Hi rtabitRefuel ,

Thank you for confirming that issue has been resolved and providing the inputs. If further assistance is still required. We are available to support you and are committed to helping you reach a resolution.

Best Regards,
Chaithra E.

topic Fabric Data Agent Issues in Data Science

Fabric Data Agent Issues

Re: Fabric Data Agent Issues

Re: Fabric Data Agent Issues