LingoPie won’t play videos while signed into XFINITY WiFi Network

Hello everyone! 

      So I’m trying to watch videos using LingoPie (a steaming service app like Netflix but for language learners) and I keep getting an error message saying “Error something went wrong!”. Whenever I use my mobile data it works perfectly fine.

I have been working with the LingoPie support team and they’re saying it’s an issue with my DNS or firewall setting. My firewall settings are set to low but the issue remains. Doesn’t matter if it’s my computer, iPad or iPhone the issue remains. Anyone have any idea how to stop this from happening? Maybe a setting I need to turn off somewhere in my WiFi network?