Hi,
Your Unity instance is trying to connect to FMOD Studio | Glossary - Live Update.
FMOD Studio | Editing During Live Update
Live update can be disabled in the platform settings: Unity Integration | Settings - Live Update, which will stop the Unity integration trying to connect to your FMOD Studio Instance.
If you want to connect to the studio instance I would suggest following these steps: Issue with Live Connecting in 2.02.15 - #2 by Leah_FMOD .
Or restarting you PC should help too.
Bank refresher just checks for changes to the bank files on disk and is not related to the warning.
Hope this helps