diff --git a/src/packages/fff/fff-network/Makefile b/src/packages/fff/fff-network/Makefile
index 43d00ae..d25c7c7 100644
--- a/src/packages/fff/fff-network/Makefile
+++ b/src/packages/fff/fff-network/Makefile
@@ -1,7 +1,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=fff-network
-PKG_RELEASE:=28
+PKG_RELEASE:=29
 
 include $(INCLUDE_DIR)/package.mk
 
diff --git a/src/packages/fff/fff-network/files/etc/uci-defaults/20-migrate-c7-portconfig b/src/packages/fff/fff-network/files/etc/uci-defaults/20-migrate-c7-portconfig
new file mode 100644
index 0000000..e6afa59
--- /dev/null
+++ b/src/packages/fff/fff-network/files/etc/uci-defaults/20-migrate-c7-portconfig
@@ -0,0 +1,14 @@
+BOARD="$(uci get board.model.name)"
+
+# only execute if running on a TP-Link Archer C7 v2
+if [ "$BOARD" != "tplink,archer-c7-v2" ]; then
+	exit 0
+fi
+
+# only execute if there is something to migrate
+if [ ! -s /etc/network.config ]; then
+	exit 0
+fi
+
+# modify WAN_PORTS to new single-interface configuration
+sed -i '/WAN_PORTS/ s/6/0t/g' /etc/network.config