How to make http requests to your web api hosted in iis from your phone's browser

[Mlifonza]

I have been trying to make web api requests to my asp.net core 2.2 web api that is hosted in iis. I can get back results when I use 'example.com:50056/api/Vehicle/GetCarpaint' from my browser. However I get 'This site can't be reached' when I make the same request from my mobile phone's browser. Even when I use the IP address of my the machine where the website is hosted. My pc and phone are both on the same network.

Below, I wrote down my finding to this whole situation.

BROWSER

• example.com --OK
• 
  example.com:50056/api/Vehicle/GetCarpaint --OK (getting back data)
  
• 
  192.168.8.X:50056 --Error 400 Bad Request -Invalid Hostname
  
• 192.168.8.X:50056/api/Vehicle/GetCarpaint --Error 400 Bad Request -Invalid Hostname

PHONE'S BROWSER

• 
  192.168.8.X --OK
  
• 
  192.168.8.X/api/Vehicle/GetCarpaint --Error 404 File or directory not found
  
• 192.168.8.X:50056 --Error 400 Bad Request -Invalid Hostname
• 192.168.8.X:50056/api/Vehicle/GetCarpaint --Error 400 Bad Request -Invalid Hostname
• example.com --This site can't be reached, drsmashservices.com's server IP address could not be found
• example.com/api/Vehicle/GetCarpaint --This site can't be reached, example.com's server IP address could not be found

I expected to type the IP address of the site with my port followed by my route however my phone's browser can't seem to find the DNS of my website, additionally, I added an inbound rule with port 50056 and I still can't get it to work, am I missing something?

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