diff --git a/feeds/tip/cloud_discovery/files/usr/bin/cloud_discovery b/feeds/tip/cloud_discovery/files/usr/bin/cloud_discovery
index 4f6a0db8c..3cae790d3 100755
--- a/feeds/tip/cloud_discovery/files/usr/bin/cloud_discovery
+++ b/feeds/tip/cloud_discovery/files/usr/bin/cloud_discovery
@@ -23,6 +23,7 @@ let ubus = libubus.connect();
 let uci = libuci.cursor();
 let state = DISCOVER;
 let discovery_method = "";
+let discovery_block_list = [];
 let validate_time;
 let offline_time;
 let orphan_time;
@@ -158,6 +159,7 @@ function set_state(set) {
 		ulog(LOG_INFO, 'Wait for validation\n');
 		validate_time = time();
 		state = VALIDATING;
+		push(discovery_block_list, discovery_method);
 		break;
 
 	case ONLINE:
@@ -166,6 +168,7 @@ function set_state(set) {
 			ulog(LOG_INFO, 'Setting cloud controller to validated\n');
 			gateway_write({ valid: true });
 			discovery_state_write();
+			discovery_block_list = [];
 		}
 		break;
 
@@ -234,6 +237,13 @@ function time_is_valid() {
 	return valid;
 }
 
+function is_discover_method_blacked() {
+	if (discovery_method in discovery_block_list)
+		return true;
+
+	return false;
+}
+
 function interval_handler() {
 	printf(`State ${state}\n`);
 	switch(state) {
@@ -267,15 +277,17 @@ function interval_handler() {
 			return;
 
 		discovery_method = DISCOVER_DHCP;
-		if (discover_dhcp())
+		if (!is_discover_method_blacked() && discover_dhcp())
 			return;
 
 		discovery_method = DISCOVER_FLASH;
-		if (!discover_flash())
+		if (!is_discover_method_blacked() && !discover_flash())
 			return;
 
 		discovery_method = DISCOVER_LOOKUP;
 		redirector_lookup();
+
+		discovery_block_list = [];
 		break;
 
 	case VALIDATING: