diff --git a/bin/netvm-names.sh b/bin/netvm-names.sh
index f00e490..00ba8c7 100755
--- a/bin/netvm-names.sh
+++ b/bin/netvm-names.sh
@@ -13,5 +13,15 @@ netvm_names() {
   # (9410, 9420, ...) instead of the hash-derived default.
   # Unset = previous behavior.
   CDP_PORT=${CDP_PORT_OVERRIDE:-$(( 9222 + 0x${_tag:4:3} % 2000 ))}
+  # Pinned registry ports: single source of truth for the fleet.
+  # (Was previously duplicated in cdp-relay-watchdog.sh relay_target();
+  # moved here 2026-10-04 so netvm-node-up.sh stops spawning wrong-port
+  # zombie relays on every browser relaunch.)
+  case "$NODE" in
+    muse) CDP_PORT=9410 ;;
+    pip)  CDP_PORT=9420 ;;
+    646)  CDP_PORT=9430 ;;
+    opm)  CDP_PORT=9440 ;;
+  esac
   GW="10.201.${_idx}.1"; PEER_IP="10.201.${_idx}.2"; SUB="10.201.${_idx}.0/30"
 }