Hello
This is a random and intermittant occurance. Has now happened twice in 40 days.
My network is a mix of Windows and Apple PCs.
Weeks ago I had a Windows PC drop of the network and having failed or intermittant communication via IP
Within 48 hours all of my Apple computers were not able to pull a IP from the DHCP server.
The problem resolved on it own.
40 days latter we have the same issue happening.
When packette sniffing on the client computer we see that the client its being "Offered" an IP but the next entry is a DHCPNAK.
In the DHCP Architecture it states that a NAK is "Broadcast by a DHCP server to a DHCP client denying the client’s DHCPRequest message. This might occur if the requested address is incorrect because the client moved to a new subnet or because the DHCP
client’s lease has expired and cannot be renewed."
The DHCP server has many scopes however the clients have the issue are not moving from one subnet to another.
If we add a reservation for a Apple client with a problem and set the DHCP option to BootP the computer quicks gets the reserved IP - setting the DHCP option to just Dynamic (not BootP) the computer gets the IP addressed 5-15 min or maybe never.
I have Reconciled all scopes and rebooted the DHCP services.
Any help is much appreciated.