We have a two node windows cluster with file share witness. We had to reboot secondary replica and for some reason we lost connection to file share at the same time. Suddenly, the cluster service was shutdown and AG went to offline. It immediately recovered. With windows server 2012 dynamic quorum setup how the cluster got shutdown with one node up and running. How was this possible? I am not able to follow. We tested on test servers with just two nodes and haven't experienced any issues with the reboot of one node. After we introduce file share witness why this issue popping up. Can someone please explain this behavior?