HEY GUYS HERE THE SITUATION

10 PCS ON A SMALL NETWORK
1 NT SERVER
9 WORKSTATIONS

2 OF THE WORKSTATIONS HAVE PRINTERS ATTACHED TO THEM. THEY HAVE BEEN WORKING FINE FOR ALMOST 2 YEARS NOW. TODAY IF I PRINT THE LOCAL MACHINE IT WORKS FINE.
IF I TRY TO PRINT FROM ANOTHER WORKSTATION IT SAYS A UNKNOWN SYSTEM ERROR OCCURED PRINTING TO //<PC NAME>/<PRINTER NAME>, RESTART WINDOWS AND TRY TO PRINT AGAIN.

IF I TRY TO PRINT FROM THE SERVER IT SAYS CANNOT PRINT TO <PRINTER NAME> ACCESS DENIED
(R)ETRY OR (C)ANCEL. IF I HIT RETRY 5 TO 10 TIMES IT WILL PRINT ?!?!?
THIS DOES NOT HAPPEN TO JUST ONE PRINTER, BUT BOTH. HERE ARE THE SOLUTIONS I HAVE TRIED

REBOOT ALL WORKSTATIONS
DELETE PRINTER AND REINSTALL DRIVER
SCANREG /FIX
UNINSTALLED ALL NETWORKING COMPNETS ON WORKSTATIONS AND REINSTALLED
TRIED NEW HUB
AND I TRIED NEW NICS IN THE WORKSTATIONS WITH THE PRINTERS?
I TRIED TO SWITCH FROM SHARE LEVEL TO USER LEVEL RIGHTS,

THE MACHINES ARE USING DHCP, WHICH IS LEASED BY A INTERNET SHARING DEVICE THAT USES A EXTERNAL 56K MODEM, IF YOU CAN HELP PLEASE REPLY