diff --git a/examples/simple_repeater/MyMesh.cpp b/examples/simple_repeater/MyMesh.cpp
index 5fb1a729f..a76a5984a 100644
--- a/examples/simple_repeater/MyMesh.cpp
+++ b/examples/simple_repeater/MyMesh.cpp
@@ -697,7 +697,7 @@ MyMesh::MyMesh(mesh::MainBoard &board, mesh::Radio &radio, mesh::MillisecondCloc
   _prefs.cr = LORA_CR;
   _prefs.tx_power_dbm = LORA_TX_POWER;
   _prefs.advert_interval = 1;        // default to 2 minutes for NEW installs
-  _prefs.flood_advert_interval = 12; // 12 hours
+  _prefs.flood_advert_interval = 48; // 48 hours, minimum is 12h
   _prefs.flood_max = 64;
   _prefs.interference_threshold = 0; // disabled
 
@@ -787,7 +787,7 @@ void MyMesh::updateAdvertTimer() {
 }
 
 void MyMesh::updateFloodAdvertTimer() {
-  if (_prefs.flood_advert_interval > 0) { // schedule flood advert timer
+  if (_prefs.flood_advert_interval > 12) { // schedule flood advert timer, min. 12h
     next_flood_advert = futureMillis(((uint32_t)_prefs.flood_advert_interval) * 60 * 60 * 1000);
   } else {
     next_flood_advert = 0; // stop the timer
diff --git a/examples/simple_room_server/MyMesh.cpp b/examples/simple_room_server/MyMesh.cpp
index d18a802e8..d0d6acd85 100644
--- a/examples/simple_room_server/MyMesh.cpp
+++ b/examples/simple_room_server/MyMesh.cpp
@@ -612,7 +612,7 @@ MyMesh::MyMesh(mesh::MainBoard &board, mesh::Radio &radio, mesh::MillisecondCloc
   _prefs.tx_power_dbm = LORA_TX_POWER;
   _prefs.disable_fwd = 1;
   _prefs.advert_interval = 1;        // default to 2 minutes for NEW installs
-  _prefs.flood_advert_interval = 12; // 12 hours
+  _prefs.flood_advert_interval = 48; // 48 hours
   _prefs.flood_max = 64;
   _prefs.interference_threshold = 0; // disabled
 #ifdef ROOM_PASSWORD
@@ -692,7 +692,7 @@ void MyMesh::updateAdvertTimer() {
   }
 }
 void MyMesh::updateFloodAdvertTimer() {
-  if (_prefs.flood_advert_interval > 0) { // schedule flood advert timer
+  if (_prefs.flood_advert_interval > 12) { // schedule flood advert timer
     next_flood_advert = futureMillis(((uint32_t)_prefs.flood_advert_interval) * 60 * 60 * 1000);
   } else {
     next_flood_advert = 0; // stop the timer
diff --git a/src/helpers/CommonCLI.cpp b/src/helpers/CommonCLI.cpp
index a3de990aa..b71da88b6 100644
--- a/src/helpers/CommonCLI.cpp
+++ b/src/helpers/CommonCLI.cpp
@@ -371,8 +371,8 @@ void CommonCLI::handleCommand(uint32_t sender_timestamp, const char* command, ch
         strcpy(reply, "OK");
       } else if (memcmp(config, "flood.advert.interval ", 22) == 0) {
         int hours = _atoi(&config[22]);
-        if ((hours > 0 && hours < 3) || (hours > 48)) {
-          strcpy(reply, "Error: interval range is 3-48 hours");
+        if ((hours > 0 && hours < 12) || (hours > 48)) {
+          strcpy(reply, "Error: interval range is 12-48 hours");
         } else {
           _prefs->flood_advert_interval = (uint8_t)(hours);
           _callbacks->updateFloodAdvertTimer();