Running Prefect on Virtual Machine - Work Queue is Unhealthy

[digitalghost-dev]

Hello, I am running Prefect on a virtual machine using Google Cloud and while running the server and agent, upon accessing the UI, the work-queue is showing up as unhealthy.

Not sure what the problem is, it works on my local machine with 127.0.0.1:4200.

For the Prefect Server, I set PREFECT_API_URL to my Virtual Machine's IP address like so:
prefect config set PREFECT_API_URL=http://<vm's ip address>:4200/api

Then I run the server with: prefect server start --host 0.0.0.0

I am then able to access the UI.

In a new terminal session, I run the agent:

prefect agent start \
-p name-of-my-pool \
-q name-of-work-queue

The agent starts and shows a message:
Starting v2.11.0 agent connected to http://<vm's ip address>:4200/api...

but then the work queue is unhealthy?

It doesn't give me any more information as to why it is though.