diff --git a/WORKITEMS.md b/WORKITEMS.md
index 5ff8d17..0a4534c 100644
--- a/WORKITEMS.md
+++ b/WORKITEMS.md
@@ -28,6 +28,7 @@ Tag yourself to claim. Check off when done. Add new items at the bottom of the r
 - [ ] Jupiter Windows VM — Server 2022 build worker for MSI CI — @unassigned | added 2026-04-16
 - [ ] Cloudflare SXG — disable via dashboard (API tokens lack scope), auto-removes June 23 — @unassigned | added 2026-04-17
 - [ ] GrepAI index — run `grepai watch` to build semantic search index — @unassigned | added 2026-04-16
+- [ ] Change LAN subnet for ACG-DC16/NEPTUNE on Dataforth network — current 172.16.x.x collides with ACG network (172.16.x.x/22) — @unassigned | added 2026-04-18
 
 ## Completed