When trying to bfu a system running yesterday's bits with todays bits (20/9), mounts
failed and the console of the server reported authentication errors. The client
reported:
Sep 20 14:22:30 pandora nfs: [ID 574564 kern.notice] NFS3 fsinfo failed for room101: RPC: Authentication error; s1 = 13, s2 = 0
and the client refused the mount the first few times. When all connections were torn
down (it seems) it recovered. This may be caused by living in a mixed restricted/unrestructed environment and handles may be reused.