# Kibana not able to connect to elasticsearch **URL:** \ **Category:** Kibana\ **Created:** [September 10, 2015, 2:36pm UTC](https://discuss.elastic.co/t/kibana-not-able-to-connect-to-elasticsearch/29038 "2015-09-10T14:36:30Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![shivam\_singh](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/shivam_singh/32/4225_2.png) [@shivam\_singh](https://discuss.elastic.co/u/shivam_singh)\ **Post date:** [September 10, 2015, 2:36pm UTC](https://discuss.elastic.co/t/kibana-not-able-to-connect-to-elasticsearch/29038/1 "2015-09-10T14:36:30Z")
Hi, I am not able to connect to my elasticsearch instance from kibana instance. Both are on AWS EC2. Getting this error: Error: Unknown error while connecting to Elasticsearch Error: Internal Server Error at respond ([http://10.0.30.xxx:5601/index.js?\_b=7562:85289:15](http://10.0.30.xxx:5601/index.js?_b=7562:85289:15)) at checkRespForFailure ([http://10.0.30.xxx:5601/index.js?\_b=7562:85257:7](http://10.0.30.xxx:5601/index.js?_b=7562:85257:7)) at [http://10.0.30.xxx:5601/index.js?\_b=7562:83895:7](http://10.0.30.xxx:5601/index.js?_b=7562:83895:7) at wrappedErrback ([http://10.0.30.xxx:5601/index.js?\_b=7562:20902:78](http://10.0.30.xxx:5601/index.js?_b=7562:20902:78)) at wrappedErrback ([http://10.0.30.xxx:5601/index.js?\_b=7562:20902:78](http://10.0.30.xxx:5601/index.js?_b=7562:20902:78)) at wrappedErrback ([http://10.0.30.xxx:5601/index.js?\_b=7562:20902:78](http://10.0.30.xxx:5601/index.js?_b=7562:20902:78)) at [http://10.0.30.xxx:5601/index.js?\_b=7562:21035:76](http://10.0.30.xxx:5601/index.js?_b=7562:21035:76) at Scope.$eval ([http://10.0.30.xxx:5601/index.js?\_b=7562:22022:28](http://10.0.30.xxx:5601/index.js?_b=7562:22022:28)) at Scope.$digest ([http://10.0.30.xxx:5601/index.js?\_b=7562:21834:31](http://10.0.30.xxx:5601/index.js?_b=7562:21834:31)) at Scope.$apply ([http://10.0.30.xxx:5601/index.js?\_b=7562:22126:24](http://10.0.30.xxx:5601/index.js?_b=7562:22126:24)) My kibana.yml port: 5601 host: "10.0.30.xxx" elasticsearch\_url: "10.0.30.yyy:9200" elasticsearch\_preserve\_host: true kibana\_index: ".kibana" default\_app\_id: "discover" ping\_timeout: 15000 request\_timeout: 900000 shard\_timeout: 0 bundled\_plugin\_ids: ...... any help? ---
**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:** [September 11, 2015, 6:55am UTC](https://discuss.elastic.co/t/kibana-not-able-to-connect-to-elasticsearch/29038/2 "2015-09-11T06:55:23Z")
Can you connect to ES ok - `curl IP:9200`? ---
**Author:** ![shivam\_singh](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/shivam_singh/32/4225_2.png) [@shivam\_singh](https://discuss.elastic.co/u/shivam_singh)\ **Post date:** [September 11, 2015, 7:07am UTC](https://discuss.elastic.co/t/kibana-not-able-to-connect-to-elasticsearch/29038/3 "2015-09-11T07:07:35Z")
Yeah..!! Anyway I solved the problem. Not exactly solved it but downgraded the version of kibana and it worked like a charm. 4.1.2-\>4.1.1 I guess its a bug in Kibana latest version. ---
**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:** [September 11, 2015, 7:13am UTC](https://discuss.elastic.co/t/kibana-not-able-to-connect-to-elasticsearch/29038/4 "2015-09-11T07:13:35Z")
Unlikely, otherwise I'd have the same problem 😉 ---
**Author:** ![shivam\_singh](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/shivam_singh/32/4225_2.png) [@shivam\_singh](https://discuss.elastic.co/u/shivam_singh)\ **Post date:** [September 11, 2015, 7:25am UTC](https://discuss.elastic.co/t/kibana-not-able-to-connect-to-elasticsearch/29038/5 "2015-09-11T07:25:24Z")
If its working for you then it should work for me too. It cannot be connection problem as firewall is off on both the machines and the both belong to the same subnet. In my post I have mentioned my config file. Is something wrong with it? ---
**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:** [September 11, 2015, 9:55am UTC](https://discuss.elastic.co/t/kibana-not-able-to-connect-to-elasticsearch/29038/6 "2015-09-11T09:55:14Z")
Looks ok from what I can see. ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 6, 2017, 2:13pm UTC](https://discuss.elastic.co/t/kibana-not-able-to-connect-to-elasticsearch/29038/7 "2017-07-06T14:13:16Z")