I upgraded my tablet last week to a Samsung Galaxy Tab S4 (SM-T837V). When trying to check for system updates I receive a "Sorry, we're having trouble authenticating your device" error. I have been on chat with tech support numerous times, which usually ends with a "are you still there?" message and my replies go unanswered. I have done a factory reset twice, still get the error. I understand I can connect to a PC and run the update assistant, but I want this fixed. Any advice? Thanks!