Hi, one of our developers is traveling abroad in Japan and when he tries to login to our app using LoginWithIOSDeviceID he receives the error:
PlayFabError(ServiceUnavailable, No Internet Connection, 400 BadRequest)
However, he can visit Google.com and api.playfab.com fine (and send iMessages too), so the internet connection is stable. For reference, he is on the ISP 'DOCOMO' over LTE. I have an identical build as him, and I can login fine over AT&T LTE and my home Wifi.