Video call stops after ≈ 30 seconds
Hello, every video call with my grandma is brutally stopped after ≈ 30 seconds. We're on Debian 9.5 with Ring package version 20180816.2.e26b79f2~dfsg1-1. I don't have this problem with my computer (on Debian) + my parent's computer on Windows (local network). Could be a NAT problem ? I don't know what to do. Thank you