# Exception while emitting periodic batch from Serilog.Sinks

**URL:** <https://discuss.elastic.co/t/exception-while-emitting-periodic-batch-from-serilog-sinks/375371>\
**Category:** Elasticsearch\
**Created:** [March 4, 2025, 11:51am UTC](https://discuss.elastic.co/t/exception-while-emitting-periodic-batch-from-serilog-sinks/375371 "2025-03-04T11:51:38Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Deekshi](https://avatars.discourse-cdn.com/v4/letter/d/9de0a6/32.png) [@Deekshi](https://discuss.elastic.co/u/Deekshi)\
**Post date:** [March 4, 2025, 11:51am UTC](https://discuss.elastic.co/t/exception-while-emitting-periodic-batch-from-serilog-sinks/375371/1 "2025-03-04T11:51:38Z")

</div>

Facing below issue  
Exception while emitting periodic batch from Serilog.Sinks.Elasticsearch.Durable.ElasticsearchLogClient: Elasticsearch.Net.ElasticsearchClientException: The client is unable to verify that the server is Elasticsearch due to an unsuccessful product check call. Some functionality may not be compatible if the server is running an unsupported product. Call: Status code unknown from: GET /

in Azure i have version 8.17.2  
in my .net 8.0 application using elastic 7.17.5