diff --git a/lib/extension/configure.ts b/lib/extension/configure.ts
index 200b275ea..39906c6b1 100644
--- a/lib/extension/configure.ts
+++ b/lib/extension/configure.ts
@@ -66,6 +66,9 @@ export default class Configure extends Extension {
     override async start(): Promise<void> {
         setImmediate(async () => {
             for (const device of this.zigbee.devices(false)) {
+                // Sleep 10 seconds between configuring on startup to not DDoS the coordinator
+                // when many devices have to be configured.
+                await utils.sleep(10);
                 await this.configure(device, 'started');
             }
         });
diff --git a/test/homeassistant.test.js b/test/homeassistant.test.js
index 6365e3a0b..bae0f8e0a 100644
--- a/test/homeassistant.test.js
+++ b/test/homeassistant.test.js
@@ -5,6 +5,7 @@ const logger = require('./stub/logger');
 const zigbeeHerdsman = require('./stub/zigbeeHerdsman');
 const flushPromises = require('./lib/flushPromises');
 const MQTT = require('./stub/mqtt');
+const sleep = require('./stub/sleep');
 const Controller = require('../lib/controller');
 const fs = require('fs');
 const path = require('path');
@@ -42,12 +43,14 @@ describe('HomeAssistant extension', () => {
         settings.reRead();
         data.writeEmptyState();
         MQTT.publish.mockClear();
+        sleep.mock();
         controller = new Controller(false);
         await controller.start();
     });
 
     afterAll(async () => {
         jest.useRealTimers();
+        sleep.restore();
     });
 
     it('Should not have duplicate type/object_ids in a mapping', () => {
diff --git a/test/otaUpdate.test.js b/test/otaUpdate.test.js
index 51fcc1ad6..648e77448 100644
--- a/test/otaUpdate.test.js
+++ b/test/otaUpdate.test.js
@@ -2,6 +2,7 @@ const path = require('path');
 
 const data = require('./stub/data');
 const logger = require('./stub/logger');
+const sleep = require('./stub/sleep');
 const zigbeeHerdsman = require('./stub/zigbeeHerdsman');
 const MQTT = require('./stub/mqtt');
 const settings = require('../lib/util/settings');
@@ -35,6 +36,7 @@ describe('OTA update', () => {
         settings.reRead();
         jest.useFakeTimers();
         controller = new Controller(jest.fn(), jest.fn());
+        sleep.mock();
         await controller.start();
         await jest.runOnlyPendingTimers();
         await flushPromises();
@@ -47,6 +49,7 @@ describe('OTA update', () => {
 
     afterAll(async () => {
         jest.useRealTimers();
+        sleep.restore();
     });
 
     beforeEach(async () => {
@@ -57,7 +60,7 @@ describe('OTA update', () => {
         MQTT.publish.mockClear();
     });
 
-    it('Should OTA update a device', async () => {
+    it('onlythis Should OTA update a device', async () => {
         const device = zigbeeHerdsman.devices.bulb;
         const endpoint = device.endpoints[0];
         let count = 0;
diff --git a/test/publish.test.js b/test/publish.test.js
index 1a0f0d917..c548ebb25 100644
--- a/test/publish.test.js
+++ b/test/publish.test.js
@@ -1,4 +1,5 @@
 const data = require('./stub/data');
+const sleep = require('./stub/sleep');
 const logger = require('./stub/logger');
 const zigbeeHerdsman = require('./stub/zigbeeHerdsman');
 const zigbeeHerdsmanConverters = require('zigbee-herdsman-converters');
@@ -30,6 +31,7 @@ describe('Publish', () => {
         jest.useFakeTimers();
         data.writeEmptyState();
         controller = new Controller(jest.fn(), jest.fn());
+        sleep.mock();
         await controller.start();
         await flushPromises();
     });
@@ -56,6 +58,7 @@ describe('Publish', () => {
     afterAll(async () => {
         jest.runOnlyPendingTimers();
         jest.useRealTimers();
+        sleep.restore();
     });
 
     it('Should publish messages to zigbee devices', async () => {
diff --git a/test/receive.test.js b/test/receive.test.js
index a317b1eeb..f0b0e1554 100755
--- a/test/receive.test.js
+++ b/test/receive.test.js
@@ -1,4 +1,5 @@
 const data = require('./stub/data');
+const sleep = require('./stub/sleep');
 const logger = require('./stub/logger');
 const stringify = require('json-stable-stringify-without-jsonify');
 const zigbeeHerdsman = require('./stub/zigbeeHerdsman');
@@ -15,6 +16,7 @@ describe('Receive', () => {
     beforeAll(async () => {
         jest.useFakeTimers();
         controller = new Controller(jest.fn(), jest.fn());
+        sleep.mock();
         await controller.start();
         await jest.runOnlyPendingTimers();
         await flushPromises();
@@ -30,6 +32,7 @@ describe('Receive', () => {
 
     afterAll(async () => {
         jest.useRealTimers();
+        sleep.restore();
     });
 
     it('Should handle a zigbee message', async () => {
diff --git a/test/stub/sleep.js b/test/stub/sleep.js
new file mode 100644
index 000000000..0a74c3aae
--- /dev/null
+++ b/test/stub/sleep.js
@@ -0,0 +1,10 @@
+const utils = require('../../lib/util/utils');
+const spy = jest.spyOn(utils.default, 'sleep');
+
+export function mock() {
+    spy.mockImplementation(() => {});
+}
+
+export function restore() {
+    spy.mockRestore();
+}