The five-check DHCP triage every helpdesk needs on Windows Server 2025: service and AD authorization, scope health, failover state, relay agents, and the KB5060842 service hang, all with paste-ready PowerShell.
A service desk playbook for gMSA and dMSA failures on Windows Server 2025: KDS root key setup, Test-ADServiceAccount False, Kerberos encryption mismatch, dMSA migration flow, and BadSuccessor mitigation.
A 2026 troubleshooting playbook for macOS Platform SSO with Microsoft Entra ID. Fix registration loops, smart card key errors, and Conditional Access blocks with diagnostic commands tier-1 staff can run.