LALITE — SCHOOL NETWORK INCIDENT CARD Updated 10 September 2026 Guide: https://lalite.org/school-it-guide/fix#network-walkthrough Incident / owner / start time / next update: Teaching or business task affected: Scope: one device / one room / one site / everyone Connection: wired / wireless / both Last known success / recent relevant change: Known-good comparison (same task, approximately same time): WINDOWS EVIDENCE — READ-ONLY CHECKS [ ] ipconfig /all: active adapter, address, DHCP, gateway and DNS recorded. [ ] ping : result compared with working device. A timeout alone does not prove failure; ICMP may be blocked. [ ] nslookup : resolver and exact result recorded. Use a hostname without https:// or a page path. [ ] Original approved service task retested; exact error and time recorded. Temporary teaching workaround: Checks performed / results: Changes made / approving owner / rollback: Escalation owner / evidence location: Recovery evidence from previously affected devices: Keep identifying network and user information in the approved ticket system. Do not change DNS, filtering, VLANs or switches as an improvised repair.