SmartThings Link frequently goes offline

[jkp]

Smartthings Link not working

Just got the preordered Smartthings Link (NVIDIA Shield dongle). Paired two bulbs and one motion sensor. Everything was fine. Then after 3 hours the hub suddenly went offline, showing “check your internet connection”. My Shield is on. Internet is fine. Now I try to reconnect the hub by either disconnecting the USB cable, uninstalling and reinstalling the app, restarting my Shield, etc several times each. Still not working. Whenever I try to open the Smartthings app on Shield, it froze at the entry screen. Hub is still shown as offline on my phone app. Anyone has the same issue? What can I do?