Windows Server DHCP Troubleshooting Guide

!Issue

Troubleshoot Windows Server DHCP failures by checking scopes, leases, authorization, network relay and DHCP Server service health.

✓Solution

01 Check DHCP service

★Recommendations

06 Validate leases Confirm a new lease is issued with the correct gateway, DNS servers and lease duration.

Confirm the DHCP Server service is running and review recent service events.

Check DHCP service

Review scope utilization, exclusions, reservations and lease availability. A full scope can look like a network outage to clients.

In an Active Directory environment, verify the DHCP server is authorized and registered correctly.

For routed networks, confirm the DHCP relay or IP helper points to the correct DHCP server and that the client VLAN reaches it.

Use ipconfig /release and ipconfig /renew from a test client and capture the resulting error or lease information.

Confirm a new lease is issued with the correct gateway, DNS servers and lease duration.

Continue with practical infrastructure troubleshooting, PowerShell scripts and operational runbooks.