NFS4 mount takes long time

I upgraded my client workstation from '3.2.0-4-amd64' to '3.13-1-amd64' and NFS4 took suddenly long time to mount.

Client syslog gives:

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zkab kernel: [ 504.213394] RPC: AUTH_GSS upcall timed out.

zkab kernel: [ 504.213394] Please check user daemon is running.

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On the server I have:

cat /etc/exports

/mnt/x-file_1/ 192.168.0.4(rw,subtree_check,sync,fsid=0)

Both client/server has following:

cat /etc/default/nfs-common

NEED_STATD=

STATDOPTS=

NEED_IDMAPD=yes

NEED_GSSD=

The client mounts NFS4 with autofs.

Why this delay in NFS4 mount ... had it not in '3.2.0-4-amd64'

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