[tlug] Network annoyingly not starting on boot

[Dave M G <dave@example.com>]

 TLUG,

This has been a minor annoyance for a while now. I thought I'd wait and 
see if upgrading to Ubuntu 10.10 would help, but it hasn't.
I have a computer with Mythbuntu installed. Whenever I boot it, it does 
not automatically become available on the LAN.
To be more specific, I use NFS to mount directories from the Mythbuntu 
machine onto directories on my main machine. I also frequently use ssh 
to open terminals or launch Firefox so that I can do things on the 
Mythbunu machine from my main computer.
So in almost all circumstances, the Mythbuntu machine is the server, and 
the main machine is the client.
Here's the annoying part. I've found a workaround. I use a program on 
the Mythbuntu machine called Wicd as a GUI interface for my network 
settings. If I go directly to the keyboard on my Mythbuntu machine, open 
up Wicd, stop and start the network once after booting, then it connects 
to the network and everything is fine.
As you can imagine, though, this is a tedious and far from ideal step to 
have to go through every time I boot the Mythbuntu machine.
It leaves me scratching my head as to why it is not automatically 
booting on startup, though. Since I can just disconnect/reconnect 
immediately after completing a boot, it would seem that all my exports 
and fstab settings on all relevant machines are set properly.
Any idea where I should be looking to diagnose this problem?

Any advice would be much appreciated.

By the way, here are some relevant details:

/etc/exports on my Mythbuntu machine:

/home/media 192.168.0.0/24(rw,no_root_squash,async,no_subtree_check)

The entry for connecting to my Mythbuntu machine from my main machine in 
the main machine's /etc/fstab:
# Mythbuntu
192.168.0.4:/home/media /home/dave/Mythbuntu nfs 
rsize=8192,wsize=8192,timeo=14,
intr

Not sure what else might be pertinent, so please let me know if there's 
other info I can provide.
Any ideas?

--
Dave M G