In the console tree of ISA Server Management, click
Monitoring.
In the details pane, click the Alerts tab.
In the details pane, click the Invalid DHCP offer group,
and then click the Invalid DHCP offer alert.
On the Tasks tab, click Renew DHCP
Addresses.
Notes
To open ISA Server Management, click Start, point to
All Programs, point to Microsoft ISA Server, and then
click ISA Server Management.
For ISA Server 2006 Enterprise Edition, expand
Microsoft Internet Security and Acceleration
Server 2006, expand Arrays, expand
Array_Name, and then click Monitoring.
For ISA Server 2006 Standard Edition, expand Microsoft
Internet Security and Acceleration Server 2006, expand
Server_Name, and then click Monitoring.