MBP can no longer access a wired network

Just like week I could no longer access an academic wired campus network.
The IT department says they can see my MBP on the network, but the MPB no longer can access the network.
I can take the same MBP to another place of employment and gain access to their wired network.
As a caveat this same MBP can access the academic wireless network with no issues.
No thing has changed on the academci wired network since last week.
Thoughts?
Thank you,
Reed

Leopard sets your mac to avoid being a master browser so you don't see other shares in finder.
There are many ways around it but if you run a network with few machines and that is the only mac the fastest is to launch terminal as administrator and issue the following command:
sudo pico /etc/hosts
Add a line at the end with the IP address of your NAS, this is what I have in my hosts
192.168.0.100 Netdrive
Hit option X and save the file. Reboot the machine the NAS will come up immediately

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MBP can no longer access a wired network

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