diff --git a/subprojects/ncsid/src/ncsid_lib.sh b/subprojects/ncsid/src/ncsid_lib.sh
index 86b5036..a8fca22 100644
--- a/subprojects/ncsid/src/ncsid_lib.sh
+++ b/subprojects/ncsid/src/ncsid_lib.sh
@@ -454,3 +454,14 @@
   printf '{"router_ip":"%s","router_mac":"%s","stateful_address":"%s"}\n' \
     "$ip" "$mac" "$staddr"
 }
+
+# Sets the network configuration of an interface to be static
+SetStatic() {
+  local service="$1"
+  local netdev="$2"
+
+  echo "Disabling DHCP" >&2
+  busctl set-property "$service" "$(EthObjRoot "$netdev")" \
+    xyz.openbmc_project.Network.EthernetInterface DHCPEnabled \
+    s xyz.openbmc_project.Network.EthernetInterface.DHCPConf.none
+}
diff --git a/subprojects/ncsid/src/ncsid_udhcpc4.script b/subprojects/ncsid/src/ncsid_udhcpc4.script
index 9c22756..bb6fa6a 100644
--- a/subprojects/ncsid/src/ncsid_udhcpc4.script
+++ b/subprojects/ncsid/src/ncsid_udhcpc4.script
@@ -49,7 +49,8 @@
     SuppressTerm
     local service='xyz.openbmc_project.Network'
     local rc=0
-    UpdateIP "$service" "$interface" "$ip" "$mask" && \
+    SetStatic "$service" "$interface" && \
+      UpdateIP "$service" "$interface" "$ip" "$mask" && \
       UpdateGateway "$service" "$interface" "$router" && \
       UpdateNeighbor "$service" "$interface" "$router" "$router_mac" || \
       rc=$?
diff --git a/subprojects/ncsid/src/ncsid_udhcpc6.script b/subprojects/ncsid/src/ncsid_udhcpc6.script
index cfed671..c913ebe 100644
--- a/subprojects/ncsid/src/ncsid_udhcpc6.script
+++ b/subprojects/ncsid/src/ncsid_udhcpc6.script
@@ -22,7 +22,8 @@
     SuppressTerm
     local service='xyz.openbmc_project.Network'
     local rc=0
-    UpdateIP "$service" "$interface" "$ipv6" '128' && \
+    SetStatic "$service" "$interface" && \
+      UpdateIP "$service" "$interface" "$ipv6" '128' && \
       UpdateGateway "$service" "$interface" "$router_ip" && \
       UpdateNeighbor "$service" "$interface" "$router_ip" "$router_mac" || \
       rc=$?
diff --git a/subprojects/ncsid/src/update_ra_gw.sh b/subprojects/ncsid/src/update_ra_gw.sh
index 77d77f4..6d2ef3a 100644
--- a/subprojects/ncsid/src/update_ra_gw.sh
+++ b/subprojects/ncsid/src/update_ra_gw.sh
@@ -28,8 +28,10 @@
   (( lifetime > 0 )) || return
 
   echo "Setting default router: $rtr at $mac" >&2
-  UpdateGateway xyz.openbmc_project.Network "$NCSI_IF" "$rtr" || return
-  UpdateNeighbor xyz.openbmc_project.Network "$NCSI_IF" "$rtr" "$mac" || return
+  local svc=xyz.openbmc_project.Network
+  SetStatic "$svc" "$NCSI_IF" || return
+  UpdateGateway "$svc" "$NCSI_IF" "$rtr" || return
+  UpdateNeighbor "$svc" "$NCSI_IF" "$rtr" "$mac" || return
 
   retries=-1
   old_mac="$mac"