diff --git a/target/linux/realtek/dts-5.15/rtl9302_zyxel_xgs1250-12.dts b/target/linux/realtek/dts-5.15/rtl9302_zyxel_xgs1250-12.dts
index 98ac08b26a9..c9a9e8f2c1d 100644
--- a/target/linux/realtek/dts-5.15/rtl9302_zyxel_xgs1250-12.dts
+++ b/target/linux/realtek/dts-5.15/rtl9302_zyxel_xgs1250-12.dts
@@ -300,17 +300,11 @@
 		port@27 {
 			reg = <27>;
 			label = "lan12";
-			phy-mode = "10gbase-r";
+			phy-mode = "1000base-x";
 			phy-handle = <&phy27>;
 			sfp = <&sfp0>;
 			led-set = <2>;
-
-			fixed-link {
-				speed = <10000>;
-				full-duplex;
-				pause;
-			};
-
+			managed = "in-band-status";
 		};
 
 		port@28 {