I'm working on a school project, and I use Arduino Uno to collect some data with sensors, and then send it to an online database. The Arduino is connected to the Internet via an Ethernet Shield and an Ethernet cable. I connected the Ethernet cable to my home router, and to the Arduino and everything works fine, the data is colledted, and sent to the database. But when I will present the project I won't have an access directly to a router, so I have to connect my laptop to WiFi and connect the Arduino to my laptop and share network. When I tested this it just did't work, I changed the Wifi network properties on my Windows 10 Laptop, to a shared network. The Arduino boots up and optains an IP adress, but when it tries to send data to the database it it doesn't work. I connected it to the home router again and everything worked so the problem is with the shared network. What is the problem? And how to solve it?