I'm a student in Germany and had done a Project with an ESP8266: It is connectet with an Arduino and collects measuring samples from a wheatstone bridge. It then builds a TCP connection to Thingspeak (May you know that, it is an IoT medium) and sends them to a linked Twitter Account. It works fine in my home WLAN, but since i had to present this in my university there was a problem: The University only has Eduroam, which has 802.x standard and is not compatible with ESP. Then I had the idea to create a mobile Hotspot with my cellphone, a Lumia 930 by Nokia. And there was the Problem. It sometimes connects to it and then lose its connection, but also when its connected, it doesnt sends the data to twitter. The Process is a simple http POST request, where you send a specific server. In my home WLAN it works fine, the data is postet on twitter but it isnt with my cellphone mobile hotspot.
Any Ideas?
Thank you,
Michel
P.S. I've done it also with an Android Device. The Connection was stable, but the data wasnt sent.