Max Osx 10.3.9 Won't Connect to Local Server


I've tried everything! My G5 crashed and had to get a new harddrive and logic board. Ouch.

Now returned from the shop and trying to get it up to snuff. Won't connect to server. Able to get on internet. Used terminal and it sees the server. BUT this is the kicker...

Was on the server for approx. 1 hour and then it disappeared. Didn't assume much, just tried to re-connect. Now I am getting the message of

"Could not connect to the server because the name or password is not correct." Try again button and Cancel Button

I've tried going into the keychain to see if it had some phantom password saved... nothing. Shut down and reboot. nothing.

Help please!!! ~lm