diff --git a/target/linux/ramips/mt7621/base-files/etc/board.d/02_network b/target/linux/ramips/mt7621/base-files/etc/board.d/02_network
index f74f039c2..0f99d2294 100644
--- a/target/linux/ramips/mt7621/base-files/etc/board.d/02_network
+++ b/target/linux/ramips/mt7621/base-files/etc/board.d/02_network
@@ -192,8 +192,8 @@ ramips_setup_macs()
 		lan_mac=$(macaddr_add $label_mac 1)
 		;;
 	raisecom,msg1500-x-00)
-		lan_mac=$(mtd_get_mac_ascii Config protest_lan_mac)
 		wan_mac=$(mtd_get_mac_ascii Config protest_wan_mac)
+		lan_mac=$(macaddr_add "$wan_mac" -3)
 		label_mac=$lan_mac
 		;;
 	xiaomi,mi-router-cr660x)
diff --git a/target/linux/ramips/mt7621/base-files/etc/hotplug.d/ieee80211/10_fix_wifi_mac b/target/linux/ramips/mt7621/base-files/etc/hotplug.d/ieee80211/10_fix_wifi_mac
index 482fd885d..2d81db61b 100644
--- a/target/linux/ramips/mt7621/base-files/etc/hotplug.d/ieee80211/10_fix_wifi_mac
+++ b/target/linux/ramips/mt7621/base-files/etc/hotplug.d/ieee80211/10_fix_wifi_mac
@@ -40,8 +40,9 @@ case "$board" in
 		[ "$PHYNBR" = "1" ] && macaddr_add $hw_mac_addr 2 > /sys${DEVPATH}/macaddress
 		;;
 	raisecom,msg1500-x-00)
-		[ "$PHYNBR" = "0" ] && \
-			macaddr_setbit_la "$(mtd_get_mac_ascii Config .protest_lan_mac)" \
-				> /sys${DEVPATH}/macaddress
+		if [ "$PHYNBR" = "0" ]; then
+			base_mac=$(macaddr_add "$(mtd_get_mac_binary Factory 0x4)" 1)
+			macaddr_setbit_la "$base_mac" > /sys${DEVPATH}/macaddress
+		fi
 		;;
 esac