NEED HELP LEAVING FOR VACATION AND AM HAVING NETWORK PROBLEMS AT WORK

This past week I have had two computers Windows 98 mysteriously lose connection to the network and the only way I can get them back on the server is if I change from automatically finding an IP to configuring the information with their old information. Yesterday I had one and today another computer did the same thing. I can get them back on the network but I have to go into TCP/IP properties and put in their IP address, subnet mask, gateway, and DSN server Ip's so they can connect to the network and web access. I also have been getting prompted on these two computers for the Windows98 cd to do something with the secur.dll file????? Please help leaving for vacation tomorrow and do not want to have problems while I am gone from the office!!!

Thanks!

What kind of server do you have? My guess is that the DHCP server is the problem.

Windows 2000 server
I went to configure your server then networking and to DHCP and you have to run this wizard to setup DHCP so it looked like we didn't have it setup but then how were they connected the past year w/out it ... we had all our computer to get an IP automatically?
Was this ok that I assigned them their old ip? or is this not the efficient way?

Recommendation?

Leave the IP's as static until you get back.

Remove all networking components, reboot and reinstall.

Check the lease DURATION on the DCHP server. It may be some dumb number like 15 minutes. Set it to three days or more, or permanent.

Then I would suspect that IE was updated or some program that uses an OLD secure.dll was installed. Try copying that DLL from a computer that has THE IDENTICAL OS (in System properties).

Good luck (ideally, making them static will set your mind at ease for the vacation).

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P933, 133MHZ FSB, 256M RAM
Ultra 160, 18.2GB Cheetah
Annihilator Pro, SBLIVE, DVD, FPS SOUND
MS Force Feedback, Cable Modem.
AKA- The ultimate gaming machine.

But on the server I can not find the place to go where the DHCP information is can anybody help me out. I got to configure your server then networking then DHCP and it says I have to set it up.

Start, Programs, Administrative Tools, DHCP Manager. If DHCP manager is not there, then perhaps you have the wrong server?

------------------
P933, 133MHZ FSB, 256M RAM
Ultra 160, 18.2GB Cheetah
Annihilator Pro, SBLIVE, DVD, FPS SOUND
MS Force Feedback, Cable Modem.
AKA- The ultimate gaming machine.