Sorry, my description is unclear...It is independent of the firmware I guess.
Go to "Global settings" > "Connectivity". Assuming you have an Alternative Server configured, click on edit and apply changes (no actual changes required), it then says "Waiting for next query!". And in my case, shortly after "Server is not reachable". Here it would be helpful to have a button "test connection / configuration"
The server not being reachable is a different issue, but let me elaborate quickly on it too. When I enter IP:port as defined in the section Alternative Servers, I can see the website loading just fine. So I am inclined to conclude that it is not a firewall / network issue blocking the connection. And I triple checked the API Key as well. Any idea what might be going on here?