# Error: could not start the HTTP server for the API: listen tcp 127.0.0.1:6791: bind: address already in use **URL:** \ **Category:** Elastic Observability\ **Tags:** fleet\ **Created:** [September 6, 2023, 1:18pm UTC](https://discuss.elastic.co/t/error-could-not-start-the-http-server-for-the-api-listen-tcp-127-0-0-1-bind-address-already-in-use/342447 "2023-09-06T13:18:19Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![tirelibirefe](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/tirelibirefe/32/71511_2.png) [@tirelibirefe](https://discuss.elastic.co/u/tirelibirefe)\ **Post date:** [September 6, 2023, 1:18pm UTC](https://discuss.elastic.co/t/error-could-not-start-the-http-server-for-the-api-listen-tcp-127-0-0-1-bind-address-already-in-use/342447/1 "2023-09-06T13:18:19Z")
Hello, I have 6 node EKS cluster and installed Elasticsearch/Kibana 8.9.1 . I have been struggling with Fleet. Although 5 elastic-agent pods works on 5 nodes, 1 elastic-agent on 1 node gives following error: `Error: could not start the HTTP server for the API: listen tcp 127.0.0.1:6791: bind: address already in use` What/where do I search for fix, could you please advise? Thanks& Regards ---
**Author:** ![hamidallaoui](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/hamidallaoui/32/122313_2.png) [@hamidallaoui](https://discuss.elastic.co/u/hamidallaoui)\ **Post date:** [September 19, 2023, 10:04am UTC](https://discuss.elastic.co/t/error-could-not-start-the-http-server-for-the-api-listen-tcp-127-0-0-1-bind-address-already-in-use/342447/2 "2023-09-19T10:04:21Z")
Hi @tirelibirefe, I am facing a similar issue having that 6791 port used by another application and I would like to change the default port used in Elastic Agent to something like 6790. I tried to added below in /opt/Elastic/Agent/elastic-agent.yml and restarted the agent but it did not work. ```auto agent.monitoring: http: port: 6790 ``` If someone has a fix it will be high appreciated. Thanks.