Win 2003 Server DHCP Problem

Hello,



We are at the beginning of converting our school system from Netware 6 with
servers in every building to centralized 2003 server forest. We have
recently had Fiber installed between 3 of the buildings with others to
follow over the summer. With this fiber we have moved for Netware DHCP to
2003 Server DHCP. 2 of the 3 buildings have worked fine, but the High School
has a problem with the old Windows 98 Machine randomly dropping the gateway
address. Some time these machines will hold for a day other times only for
about 15 Minutes. This problem is not happening in the other 2 buildings and
is not affecting the XP Pro Machines.



On these machine we have tried all of the following, moving hub/switch
locations, changing NIC cards, completely reloading machines from scratch.
And none of these have worked. We have the same machines, NICS and loads in
the other 2 buildings and they work fine. We have also checked all the DHCP
scope settings to see that they match.



We only need a fix to get us thru the next 5 weeks as we will be completely
changing all the machines to new dells with XP Pro after the school year is
out.



Any Ideas on what to do to fix this?



Thanks in Advance

Greg Bemis