iPhone Clients Failing to Connect to AWARE Server via Cellular Data

[taehooonlee]

Hi there,

I executed AWARE server by following the guideline in the aware-micro repository to collect data from smartphone clients. And I scanned QR code to connect iOS clients to the server, but a problem happens as below.

When iPhone uses cellular data (i.e., without Wi-Fi connection), it fails to be connected to AWARE server. However, if the phone is connected to Wi-Fi, then the connection from the phone to the AWARE server succeeds. The below image shows the issue.

There is no such issue with Android-based clients in my cases. It happens only when using cellular data on iPhone.

Does anyone know how to fix it?