I have no idea why it works sometimes, but I found a reference to OpenSolaris
NFS requiring a reverse lookup on the IP address of the client. The machines
that worked have one, the broken ones didn't. So I added them to /etc/hosts and
all is well. I'll probably add them to the DHCP server so I don't have to deal
with the hosts file. Odd issue, I saw it referenced as a bug, but I don't know
how to look into that. Just posting so that if anyone else is having the same
issue, they know how to fix it.
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