Hi!
This is Emil from Loupedeck.
Check the remote websocket server settings from the tools menu in OBS and see if the authentication is enabled. If it is on it can prevent this form the connection reaching out.
We are currently working on an overhaul of certain features and the UI which aim to optimize the streaming experience, with this update there will be no need to install the websocket anymore as that will be included in our installer. A beta version of this will be available this week or last week latest and if the above does not help you I can instruct you how to join the beta program and install the new version.
All the best,
Emil