Running Spring app on local network IP 192.168.X.X
<p>I run my Spring web app on localhost, so both addresses work:</p>

<p><a href="http://localhost:9999/app" rel="noreferrer">http://localhost:9999/app</a></p>

<p><a href="http://127.0.0.1:9999/app" rel="noreferrer">http://127.0.0.1:9999/app</a></p>

<p>I would also like to see this app running on concrete IP of my machine (in order to access it from a mobile, but that is less important here). I used ipconfig to obtain my IPv4, but when I use it like so:</p>

<p><a href="http://192.168.1.4:9999/app" rel="noreferrer">http://192.168.1.4:9999/app</a></p>

<p>I get 'this site can't be reached'. That's still on my local machine,
not mobile. Is there something else I should set up to make it work?</p>

<p>EDIT: here's a PrintScreen illustrating the problem. I don't think this is a matter of app configuration, because server console should show up in all cases, even if there is no app deployed or running.</p>

<p><a href="https://i.stack.imgur.com/hXTGq.png" rel="noreferrer"><img src="https://i.stack.imgur.com/hXTGq.png" alt="enter image description here"></a></p>