APM showing "Not yet applied by any agents"

Kibana version: 7.7

Elasticsearch version: 7.7

APM Server version: 7.7

APM Agent language and version: Java Agent 1.15 (elastic-apm-agent-1.15.0.jar)

Browser version: Google Chrome

Original install method (e.g. download page, yum, deb, from source, etc.) and version: Downloaded from elastic.com

Fresh install or upgraded from other version? Upgraded from 7.6

Description of the problem including expected versus actual behavior:
APM is working generally, I am getting data from the agent. But in Kibana > APM > Settings > Agent configuration > Remote Agent Configuration, i see "Not yet applied by any agents"
But agent is active and sending data. I think I am missing something for central configuration, but tested a lot of things without success.

Steps to reproduce:

  1. Configure APM Agent
  2. Start Application
  3. Check Agent Remote Configuration Tab

Have you enabled agent remote configuration in your APM Server by configuring apm-server.kibana.* in the apm-server.yml?

No, i had not enabled that, Thanks. Didn't find this anywhere in documentation or may have read over it... I enabled it now, but see the following in the log:

ERROR co.elastic.apm.agent.configuration.ApmServerConfigurationSource - Remote configuration is not available. Check the connection between APM Server and Kibana.

Does the agent now also need access to Kibana (running on Port 5601) ?
For our test environment, we just opened access to port 8200 (Apm-server) for the application.... Do we need also 5601?

Thanks

Please ignore my last message, i had to set IP address for kibana.host instead of localhost, now they are talking to each other and agent remote configuration works. Thanks. My topic is solved.