diff --git a/x-pack/plugins/task_manager/server/config.ts b/x-pack/plugins/task_manager/server/config.ts
index 044c982312635..92d7429501cd9 100644
--- a/x-pack/plugins/task_manager/server/config.ts
+++ b/x-pack/plugins/task_manager/server/config.ts
@@ -36,7 +36,7 @@ export const CLAIM_STRATEGY_MGET = 'mget';
 export const DEFAULT_DISCOVERY_INTERVAL_MS = 1000 * 10; // 10 seconds
 const MIN_DISCOVERY_INTERVAL_MS = 1000; // 1 second
 const MAX_DISCOVERY_INTERVAL_MS = 1000 * 60 * 5; // 5 minutes
-export const DISCOVERY_INTERVAL_AFTER_BLOCK_EXCEPTION_MS = 6 * 1000 * 10; // 10 seconds
+export const DISCOVERY_INTERVAL_AFTER_BLOCK_EXCEPTION_MS = 6 * 1000 * 10; // 60 seconds
 
 export const DEFAULT_ACTIVE_NODES_LOOK_BACK_DURATION = '30s';
 const FIVE_MIN_IN_MS = 5 * 60 * 1000;
diff --git a/x-pack/plugins/task_manager/server/integration_tests/managed_configuration.test.ts b/x-pack/plugins/task_manager/server/integration_tests/managed_configuration.test.ts
index ab1d1bc0498fd..d048cc4063fa2 100644
--- a/x-pack/plugins/task_manager/server/integration_tests/managed_configuration.test.ts
+++ b/x-pack/plugins/task_manager/server/integration_tests/managed_configuration.test.ts
@@ -13,6 +13,7 @@ import { ADJUST_THROUGHPUT_INTERVAL } from '../lib/create_managed_configuration'
 import { TaskManagerPlugin, TaskManagerStartContract } from '../plugin';
 import { coreMock } from '@kbn/core/server/mocks';
 import { TaskManagerConfig } from '../config';
+import { BulkUpdateError } from '../lib/bulk_update_error';
 
 describe('managed configuration', () => {
   let taskManagerStart: TaskManagerStartContract;
@@ -130,14 +131,41 @@ describe('managed configuration', () => {
       clock.tick(ADJUST_THROUGHPUT_INTERVAL);
 
       expect(logger.warn).toHaveBeenCalledWith(
-        'Poll interval configuration is temporarily increased after Elasticsearch returned 1 "too many request" and/or "execute [inline] script" error(s).'
+        'Poll interval configuration is temporarily increased after Elasticsearch returned 1 "too many request" and/or "execute [inline] script" and/or "cluster_block_exception" error(s).'
       );
       expect(logger.debug).toHaveBeenCalledWith(
-        'Poll interval configuration changing from 3000 to 3600 after seeing 1 "too many request" and/or "execute [inline] script" error(s)'
+        'Poll interval configuration changing from 3000 to 3600 after seeing 1 "too many request" and/or "execute [inline] script" and/or "cluster_block_exception" error(s).'
       );
       expect(logger.debug).toHaveBeenCalledWith('Task poller now using interval of 3600ms');
     });
 
+    test('should increase poll interval when Elasticsearch returns a cluster_block_exception error', async () => {
+      savedObjectsClient.create.mockRejectedValueOnce(
+        new BulkUpdateError({
+          statusCode: 403,
+          message: 'index is blocked',
+          type: 'cluster_block_exception',
+        })
+      );
+
+      await expect(
+        taskManagerStart.schedule({
+          taskType: 'foo',
+          state: {},
+          params: {},
+        })
+      ).rejects.toThrowErrorMatchingInlineSnapshot(`"index is blocked"`);
+      clock.tick(100000);
+
+      expect(logger.warn).toHaveBeenCalledWith(
+        'Poll interval configuration is temporarily increased after Elasticsearch returned 1 "too many request" and/or "execute [inline] script" and/or "cluster_block_exception" error(s).'
+      );
+      expect(logger.debug).toHaveBeenCalledWith(
+        'Poll interval configuration changing from 3000 to 61000 after seeing 1 "too many request" and/or "execute [inline] script" and/or "cluster_block_exception" error(s).'
+      );
+      expect(logger.debug).toHaveBeenCalledWith('Task poller now using interval of 61000ms');
+    });
+
     test('should increase poll interval when Elasticsearch returns "cannot execute [inline] scripts" error', async () => {
       const childEsClient = esStart.client.asInternalUser.child({}) as jest.Mocked<Client>;
       childEsClient.search.mockImplementationOnce(async () => {
@@ -151,10 +179,10 @@ describe('managed configuration', () => {
       clock.tick(ADJUST_THROUGHPUT_INTERVAL);
 
       expect(logger.warn).toHaveBeenCalledWith(
-        'Poll interval configuration is temporarily increased after Elasticsearch returned 1 "too many request" and/or "execute [inline] script" error(s).'
+        'Poll interval configuration is temporarily increased after Elasticsearch returned 1 "too many request" and/or "execute [inline] script" and/or "cluster_block_exception" error(s).'
       );
       expect(logger.debug).toHaveBeenCalledWith(
-        'Poll interval configuration changing from 3000 to 3600 after seeing 1 "too many request" and/or "execute [inline] script" error(s)'
+        'Poll interval configuration changing from 3000 to 3600 after seeing 1 "too many request" and/or "execute [inline] script" and/or "cluster_block_exception" error(s).'
       );
       expect(logger.debug).toHaveBeenCalledWith('Task poller now using interval of 3600ms');
     });
diff --git a/x-pack/plugins/task_manager/server/lib/create_managed_configuration.test.ts b/x-pack/plugins/task_manager/server/lib/create_managed_configuration.test.ts
index 501d35e2c8550..cd13ac20026ed 100644
--- a/x-pack/plugins/task_manager/server/lib/create_managed_configuration.test.ts
+++ b/x-pack/plugins/task_manager/server/lib/create_managed_configuration.test.ts
@@ -443,7 +443,7 @@ describe('createManagedConfiguration()', () => {
       errors$.next(SavedObjectsErrorHelpers.createTooManyRequestsError('a', 'b'));
       clock.tick(ADJUST_THROUGHPUT_INTERVAL);
       expect(logger.warn).toHaveBeenCalledWith(
-        'Poll interval configuration is temporarily increased after Elasticsearch returned 1 "too many request" and/or "execute [inline] script and/or "cluster_block_exception"" error(s).'
+        'Poll interval configuration is temporarily increased after Elasticsearch returned 1 "too many request" and/or "execute [inline] script" and/or "cluster_block_exception" error(s).'
       );
     });
 
diff --git a/x-pack/plugins/task_manager/server/lib/create_managed_configuration.ts b/x-pack/plugins/task_manager/server/lib/create_managed_configuration.ts
index c62e18b6446bd..dfe5097567dc1 100644
--- a/x-pack/plugins/task_manager/server/lib/create_managed_configuration.ts
+++ b/x-pack/plugins/task_manager/server/lib/create_managed_configuration.ts
@@ -141,14 +141,16 @@ function createPollIntervalScan(logger: Logger, startingPollInterval: number) {
           }
         } else {
           if (previousPollInterval === INTERVAL_AFTER_BLOCK_EXCEPTION) {
-            previousPollInterval = startingPollInterval;
+            newPollInterval = startingPollInterval;
+          } else {
+            // Decrease poll interval by POLL_INTERVAL_DECREASE_PERCENTAGE and use Math.floor to
+            // make sure the number is different than previous while not being a decimal value.
+            newPollInterval = Math.max(
+              startingPollInterval,
+              Math.floor(previousPollInterval * POLL_INTERVAL_DECREASE_PERCENTAGE)
+            );
           }
-          // Decrease poll interval by POLL_INTERVAL_DECREASE_PERCENTAGE and use Math.floor to
-          // make sure the number is different than previous while not being a decimal value.
-          newPollInterval = Math.max(
-            startingPollInterval,
-            Math.floor(previousPollInterval * POLL_INTERVAL_DECREASE_PERCENTAGE)
-          );
+
           if (!Number.isSafeInteger(newPollInterval) || newPollInterval < 0) {
             logger.error(
               `Poll interval configuration had an issue calculating the new poll interval: Math.max(${startingPollInterval}, Math.floor(${previousPollInterval} * ${POLL_INTERVAL_DECREASE_PERCENTAGE})) = ${newPollInterval}, will keep the poll interval unchanged (${previousPollInterval})`
@@ -160,11 +162,11 @@ function createPollIntervalScan(logger: Logger, startingPollInterval: number) {
 
       if (newPollInterval !== previousPollInterval) {
         logger.debug(
-          `Poll interval configuration changing from ${previousPollInterval} to ${newPollInterval} after seeing ${errorCount} "too many request" and/or "execute [inline] script" and/or "cluster_block_exception" error(s)`
+          `Poll interval configuration changing from ${previousPollInterval} to ${newPollInterval} after seeing ${errorCount} "too many request" and/or "execute [inline] script" and/or "cluster_block_exception" error(s).`
         );
         if (previousPollInterval === startingPollInterval) {
           logger.warn(
-            `Poll interval configuration is temporarily increased after Elasticsearch returned ${errorCount} "too many request" and/or "execute [inline] script and/or "cluster_block_exception"" error(s).`
+            `Poll interval configuration is temporarily increased after Elasticsearch returned ${errorCount} "too many request" and/or "execute [inline] script" and/or "cluster_block_exception" error(s).`
           );
         }
       }