I don't know how things are configured on your end. It sounds like you have an issue if you have a dedicated wifi connection and your server is on another connection, both probably are in different networks. Since you can't ping the server, that's a possibility.
I can only suggest that you work step by step. Start first by establishing a connection in the easiest, simplest configuration. Make sure the server and you are on the same network. Once that is done, ensure connectivity going from the simplest thing, then, gradually, go to the next that is less easy until you make it. First make sure you can ping, or if it's discoverable by your laptop, then check if you can move files across, then check if you can connect through MS SQL or whatever database system you're using.
Actually, the simplest thing might be using the server itself or some machine that you know for sure it is connected to it, and check how it's wired. Sooner or later, you'll find where the problem is. I recall some time ago when I worked with MS SQL, credentials were an issue, so that might be the culprit as well. Now, I don't know what you're using for your development, but these things appear in console. If you were using Visual studio, there's the "problems" tab; if it's the browser, there's the console and other tools in the developers tools of the browser, so look for errors. When I work with my stuff, everything is very transparent, I always know what's failing, but I have no idea what you're using.
