From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jim Rees <rees@umich.edu>
Subject: Re: (k)ubuntu NFS buy
Date: Fri, 29 Apr 2011 11:02:14 -0400
Message-ID: <20110429150214.GA10040@merit.edu>
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To: Jim Anderson <ezjab-EkmVulN54Sk@public.gmane.org>
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Jim Anderson wrote:

  I did a search on the error message and I found the following Ubuntu
  bug: https://bugs.launchpad.net/ubuntu/+source/nfs-utils/+bug/656889
  According to this bug report, This is a bug and it is not fixed in
  10.10 final release.

That's unlikely to be your problem since your server does support tcp.  But
maybe you have a firewall problem.  Try proto=udp and nfsvers=3 mount
options (separately).  If proto=udp works, fix your firewall.