Error Loading PHP Page On 4G

Question

I have a new webpage that runs perfectly on any device when connected to wifi, but when the device is running on 4G or anything else but Wifi the page does not load and this error is displayed...

Technical Description:
502 bad gateway - response error, a bad response was received from another proxy 
server or the destination orgin server

The page is just a simple php login page, every thing is connected to the database too. What could be causing this to not load? The page is...

http://kissbeta.comule.com/Beta/LoginRegister/demo.php

Thank you for your time and I appreciate all the help I can get.

Answer 1

This is a network error.You will have to contact your ISP regarding this.Maybe the hostname has been blocked.

Usually different kinds of network are served by independent network setups.Hence a rule that applies to 4g might affect only 4g and not other networks.

For instance In India,the site pastebin.com is not available from WiMax of our ISP but it is available from the wired lan of the same ISP.