# Invalid NEST response built from a unsuccessful () low level call on PUT: **URL:** \ **Category:** Elasticsearch\ **Tags:** language-clients\ **Created:** [May 2, 2023, 2:10pm UTC](https://discuss.elastic.co/t/invalid-nest-response-built-from-a-unsuccessful-low-level-call-on-put/332295 "2023-05-02T14:10:14Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Maedeh\_Rafiei](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/maedeh_rafiei/32/118846_2.png) [@Maedeh\_Rafiei](https://discuss.elastic.co/u/Maedeh_Rafiei)\ **Post date:** [May 2, 2023, 2:10pm UTC](https://discuss.elastic.co/t/invalid-nest-response-built-from-a-unsuccessful-low-level-call-on-put/332295/1 "2023-05-02T14:10:14Z")
hi , I've used multi-instance elastic but when I use the hostname I get this error # Elasticsearch.Net.ElasticsearchClientException: Failed to ping the specified node.. Call: unknown resource But using IP in output elasticsearch - logstash working fine I used this for multi instance-\>StaticConnectionPool ---
**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\ **Post date:** [May 2, 2023, 11:50pm UTC](https://discuss.elastic.co/t/invalid-nest-response-built-from-a-unsuccessful-low-level-call-on-put/332295/2 "2023-05-02T23:50:26Z")
Welcome to our community! 😃 I don't know the NEST client, but if you could add the code you are using and the full error it will help those that know help you find a resolution ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [May 30, 2023, 11:51pm UTC](https://discuss.elastic.co/t/invalid-nest-response-built-from-a-unsuccessful-low-level-call-on-put/332295/3 "2023-05-30T23:51:12Z")
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