ISA Clients, No response from dhcp server

Since installing ISA 2004 on my SBS2003 server, clients can not get a valid
IP address set from the DHCP server. I also cannot ping the server and get a
response although I can ping the router on the same subnet.
I tried disabling ISA but nothing changes.
--
John Hill mcse,cne,a+

Hello,

Did you try the following? :

1. Open the ISA 2004 MMC.
2. Expand the <servername>, expand Configuration, and click on Networks.
3. On the right, select the Networks tab.
4. Doulbe-click the network named Internal.
5. Click the Addresses tab.
6. Select the address range and click Edit.
7. Modify the Ending Address to include the broadcast address for the
internal
subnet. This number will end in 255.

For instance: If the internal subnet is 10.1.2.0 with a subnet mask of
255.255.255.0, then the ending address would be 10.1.2.255.

8. Click OK two times and click Apply in the ISA 2004 MMC to apply the
changes.

regards,

Henk