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 a1d8f2e3a..03df7b8a0 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
@@ -199,6 +199,10 @@ ramips_setup_macs()
 		lan_mac=$(macaddr_add "$wan_mac" -3)
 		label_mac=$lan_mac
 		;;
+	xiaomi,mi-router-cr660x)
+		lan_mac=$(cat /sys/class/net/eth0/address)
+		wan_mac=$(macaddr_add "$lan_mac" -1)
+		;;
 	esac
 
 	[ -n "$lan_mac" ] && ucidef_set_interface_macaddr "lan" $lan_mac
diff --git a/target/linux/ramips/mt7621/base-files/etc/init.d/set-irq-affinity b/target/linux/ramips/mt7621/base-files/etc/init.d/set-irq-affinity
index 8cb62b031..23a878469 100755
--- a/target/linux/ramips/mt7621/base-files/etc/init.d/set-irq-affinity
+++ b/target/linux/ramips/mt7621/base-files/etc/init.d/set-irq-affinity
@@ -17,13 +17,15 @@ start() {
 		[ $mask = 4 ] && mask=8
 	done
 
-	echo "6" > "/sys/class/net/eth0/queues/rx-0/rps_cpus"
-	echo "6" > "/sys/class/net/ra0/queues/rx-0/rps_cpus"
-	echo "6" > "/sys/class/net/rai0/queues/rx-0/rps_cpus"
-	echo "6" > "/sys/class/net/rax0/queues/rx-0/rps_cpus"
-	echo "6" > "/sys/class/net/apcli0/queues/rx-0/rps_cpus"
-	echo "6" > "/sys/class/net/apclix0/queues/rx-0/rps_cpus"
-	echo "6" > "/sys/class/net/apclii0/queues/rx-0/rps_cpus"
+	[ -e "/sys/class/net/eth0/queues/rx-0/rps_cpus" ] && echo "6" > "/sys/class/net/eth0/queues/rx-0/rps_cpus"
+	[ -e "/sys/class/net/ra0/queues/rx-0/rps_cpus" ] && echo "6" > "/sys/class/net/ra0/queues/rx-0/rps_cpus"
+	[ -e "/sys/class/net/rai0/queues/rx-0/rps_cpus" ] && echo "6" > "/sys/class/net/rai0/queues/rx-0/rps_cpus"
+	[ -e "/sys/class/net/rax0/queues/rx-0/rps_cpus" ] && echo "6" > "/sys/class/net/rax0/queues/rx-0/rps_cpus"
+	[ -e "/sys/class/net/apcli0/queues/rx-0/rps_cpus" ] && echo "6" > "/sys/class/net/apcli0/queues/rx-0/rps_cpus"
+	[ -e "/sys/class/net/apclix0/queues/rx-0/rps_cpus" ] && echo "6" > "/sys/class/net/apclix0/queues/rx-0/rps_cpus"
+	[ -e "/sys/class/net/apclii0/queues/rx-0/rps_cpus" ] && echo "6" > "/sys/class/net/apclii0/queues/rx-0/rps_cpus"
+	[ -e "/sys/class/net/wlan0/queues/rx-0/rps_cpus" ] && echo "6" > "/sys/class/net/wlan0/queues/rx-0/rps_cpus"
+	[ -e "/sys/class/net/wlan1/queues/rx-0/rps_cpus" ] && echo "6" > "/sys/class/net/wlan1/queues/rx-0/rps_cpus"
 	echo "8" > "/proc/irq/23/smp_affinity"
 	echo "8" > "/proc/irq/24/smp_affinity"
 }