I have a small network with winnt server, and some nt and 98 wksts. Ever time I see the event viewer I see this error. "DHCP failed to obtain a lease for the network address 00D0B 72e 7c83 on multihomed machine. all subsequent adapters will fail to obtain a lease. the following error occured semaphore time out period has expired." now how do I find out wich machine that has the network address 00D0B 72e 7c83. help. hana

At the command prompt, type: arp -a You will get something like this: Internet Address Physical Address Type 10.0.0.29 08-09-E3-F3-F1-90 dynamic 10.0.0.23 00-D0-B7-2E-7C-83 Review the list and match up the IP with the network address. Next type: nbtstat -A (IP ADDRESS) replace (IP ADDRESS) with the IP that matched that particular network address. In the example it would be: nbtstat -A 10.0.0.23 Be sure to use the upper case A in the command. Your output will look something like this: Name Type Status -------------------------------- WKS-123 Unique Registered DOMAIN Group Registered WKS-123 Unique Registered WKS-123 Unique Registered DOMAIN Group Registered PSMITH Unique Registered MAC Address = 00-D0-B7-2E-7C-83 The last line will be the logged in username. The first line will be the computer name. Hope this helps.

I usually just exclude the IP address from the DHCP scope and reboot the unhappy machine.