Filebeat wont post log messages to Elastic

This is the error we get. Any thoughts?

filebeat: 2019-10-01T17:19:04.468-0400#011ERROR#011pipeline/output.go:100#011Failed to connect to backoff(elasticsearch(https://server.name.com:1234)): Connection marked as failed because the onConnect callback failed: failed to create alias: {"error":"Incorrect HTTP method for uri [/<filebeat-7.3.2-{now/d}-000001>] and method [PUT], allowed: [POST]","status":405}: 405 Method Not Allowed: {"error":"Incorrect HTTP method for uri [/<filebeat-7.3.2-{now/d}-000001>] and method [PUT], allowed: [POST]","status":405}

Hey,

are you sure you can connect to your elasticsearch instance from filebeat?
It says "Failed to connect to backoff(elasticsearch..."

"failed to create the alias" is probably a follow up on the missing connection to ES.

Could you share parts of your filebeat config?