Comment 7 for bug 1590799

I lost the system disk on my server and re-installed from scratch. I did a apt update/upgrade before installing nfs-kernel-server and now everything seems OK.

root@server:~# systemctl status nfs-kernel-server
● nfs-server.service - NFS server and services
   Loaded: loaded (/lib/systemd/system/nfs-server.service; enabled; vendor preset: enabled)
   Active: active (exited) since Sat 2016-09-03 11:59:27 BST; 5min ago
  Process: 3324 ExecStart=/usr/sbin/rpc.nfsd $RPCNFSDARGS (code=exited, status=0/SUCCESS)
  Process: 3317 ExecStartPre=/usr/sbin/exportfs -r (code=exited, status=0/SUCCESS)
 Main PID: 3324 (code=exited, status=0/SUCCESS)
    Tasks: 0
   Memory: 0B
      CPU: 0
   CGroup: /system.slice/nfs-server.service

Sep 03 11:59:27 server systemd[1]: Starting NFS server and services...
Sep 03 11:59:27 server systemd[1]: Started NFS server and services.

root@server:~# systemctl status nfs-mountd.service
● nfs-mountd.service - NFS Mount Daemon
   Loaded: loaded (/lib/systemd/system/nfs-mountd.service; static; vendor preset: enabled)
   Active: active (running) since Sat 2016-09-03 11:59:27 BST; 3min 5s ago
  Process: 3306 ExecStart=/usr/sbin/rpc.mountd $RPCMOUNTDARGS (code=exited, status=0/SUCCESS)
 Main PID: 3315 (rpc.mountd)
    Tasks: 1
   Memory: 3.3M
      CPU: 8ms
   CGroup: /system.slice/nfs-mountd.service
           └─3315 /usr/sbin/rpc.mountd --manage-gids

Sep 03 11:59:27 server systemd[1]: Starting NFS Mount Daemon...
Sep 03 11:59:27 server rpc.mountd[3315]: Version 1.2.8 starting
Sep 03 11:59:27 server systemd[1]: Started NFS Mount Daemon.

root@server:~# lsb_release -rd
Description: Ubuntu 16.04.1 LTS
Release: 16.04

and I can access the share from my laptop successfully.

It appears that 16.04.1 has fixed this bug