📖 ~1 min read
Table of contents
Symptom & Impact
DHCP failover lease sync intermittently lags.
Environment & Reproduction
Appears after NIC advanced-property changes.
Get-DhcpServerv4Failover
Get-NetAdapterAdvancedProperty -Name 'Ethernet'Root Cause Analysis
Offload changes affect failover replication packet handling.
Quick Triage
Validate partner state and adapter drift.
Step-by-Step Diagnosis
Correlate failover events with NIC error counters.
Solution — Primary Fix
Revert unstable properties and update driver.
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Set-NetAdapterAdvancedProperty -Name 'Ethernet' -DisplayName 'Large Send Offload v2 (IPv4)' -DisplayValue 'Disabled'
Solution — Alternative Approaches
Increase MCLT temporarily while rollout completes.
Verification & Acceptance Criteria
Failover remains Normal with timely lease replication.
Rollback Plan
Restore previous adapter profile and failover settings.
Prevention & Hardening
Freeze NIC baselines on DHCP infrastructure.
Related Errors & Cross-Refs
Related to NDIS drops and DPC latency spikes.
Related tutorial: View the step-by-step tutorial for Windows Server 2016.
View all Windows Server 2016 tutorials on the Tutorials Hub →
Browse all common problems & solutions on the Tutorials Hub.
References & Further Reading
DHCP failover networking guidance.
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