LINE App Cannot Send or Receive Messages When Connected to RBR750 WiFi

Hi, 

Thank you for your reply.

I’m located in Taiwan, which is geographically close to Japan,
but I don’t think this issue is related to any license problem.

The main issue is that LINE messages cannot be sent or received properly, which is the app’s core and essential function.
Testing with LINE VOOM is just another way to verify whether the device can successfully connect to the LINE servers, not only for text communication but also for video and media transmission.

So far, I haven’t seen any error messages related to licensing.
It behaves more like a situation where the app cannot connect to the internet, as no content or interface elements are loaded.

Thank you again for the information you provided.
If there are any other possible solutions or settings to try, please feel free to share them — I’m happy to test further.