diff --git a/lib/private/User/Manager.php b/lib/private/User/Manager.php
index 5c899b7892f21..2dc37f97b0bf7 100644
--- a/lib/private/User/Manager.php
+++ b/lib/private/User/Manager.php
@@ -9,6 +9,7 @@
 
 use OC\Hooks\PublicEmitter;
 use OC\Memcache\WithLocalCache;
+use OC\ServerNotAvailableException;
 use OCP\Config\IUserConfig;
 use OCP\DB\QueryBuilder\IQueryBuilder;
 use OCP\EventDispatcher\IEventDispatcher;
@@ -231,7 +232,12 @@ public function checkPasswordNoLogging($loginName, $password) {
 		foreach ($backends as $backend) {
 			if ($backend instanceof ICheckPasswordBackend || $backend->implementsActions(Backend::CHECK_PASSWORD)) {
 				/** @var ICheckPasswordBackend $backend */
-				$uid = $backend->checkPassword($loginName, $password);
+				try {
+					$uid = $backend->checkPassword($loginName, $password);
+				} catch (ServerNotAvailableException $e) {
+					$this->logger->warning('Unable to check password against user backend: ' . ($backend instanceof IUserBackend ? $backend->getBackendName() : get_class($backend)), ['exception' => $e]);
+					continue;
+				}
 				if ($uid !== false) {
 					return $this->getUserObject($uid, $backend);
 				}
@@ -246,7 +252,12 @@ public function checkPasswordNoLogging($loginName, $password) {
 		foreach ($backends as $backend) {
 			if ($backend instanceof ICheckPasswordBackend || $backend->implementsActions(Backend::CHECK_PASSWORD)) {
 				/** @var ICheckPasswordBackend|UserInterface $backend */
-				$uid = $backend->checkPassword($loginName, $password);
+				try {
+					$uid = $backend->checkPassword($loginName, $password);
+				} catch (ServerNotAvailableException $e) {
+					$this->logger->warning('Unable to check password against user backend: ' . ($backend instanceof IUserBackend ? $backend->getBackendName() : get_class($backend)), ['exception' => $e]);
+					continue;
+				}
 				if ($uid !== false) {
 					return $this->getUserObject($uid, $backend);
 				}
diff --git a/tests/lib/User/ManagerTest.php b/tests/lib/User/ManagerTest.php
index f606ac4d80503..0c86a4ca043c9 100644
--- a/tests/lib/User/ManagerTest.php
+++ b/tests/lib/User/ManagerTest.php
@@ -9,6 +9,7 @@
 namespace Test\User;
 
 use OC\AllConfig;
+use OC\ServerNotAvailableException;
 use OC\USER\BACKEND;
 use OC\User\Database;
 use OC\User\Manager;
@@ -165,6 +166,60 @@ public function testCheckPassword(): void {
 		$this->assertTrue($user instanceof User);
 	}
 
+	public function testCheckPasswordNoLoggingContinuesAfterUnavailableBackend(): void {
+		$exception = new ServerNotAvailableException();
+		$unavailableBackend = $this->createMock(\Test\Util\User\Dummy::class);
+		$unavailableBackend->expects($this->once())
+			->method('checkPassword')
+			->with('foo', 'bar')
+			->willThrowException($exception);
+		$unavailableBackend->method('implementsActions')
+			->with(BACKEND::CHECK_PASSWORD)
+			->willReturn(true);
+		$unavailableBackend->method('getBackendName')
+			->willReturn('Dummy');
+
+		$databaseBackend = $this->createMock(Database::class);
+		$databaseBackend->expects($this->once())
+			->method('checkPassword')
+			->with('foo', 'bar')
+			->willReturn('foo');
+
+		$this->logger->expects($this->once())
+			->method('warning')
+			->with('Unable to check password against user backend: Dummy', ['exception' => $exception]);
+
+		$manager = new Manager($this->config, $this->cacheFactory, $this->eventDispatcher, $this->logger);
+		$manager->registerBackend($unavailableBackend);
+		$manager->registerBackend($databaseBackend);
+
+		$user = $manager->checkPasswordNoLogging('foo', 'bar');
+		$this->assertInstanceOf(User::class, $user);
+		$this->assertSame('foo', $user->getUID());
+	}
+
+	public function testCheckPasswordNoLoggingReturnsFalseForUnavailableBackend(): void {
+		$exception = new ServerNotAvailableException();
+		$backend = $this->createMock(\Test\Util\User\Dummy::class);
+		$backend->method('checkPassword')
+			->with('foo', 'bar')
+			->willThrowException($exception);
+		$backend->method('implementsActions')
+			->with(BACKEND::CHECK_PASSWORD)
+			->willReturn(true);
+		$backend->method('getBackendName')
+			->willReturn('Dummy');
+
+		$this->logger->expects($this->atLeastOnce())
+			->method('warning')
+			->with('Unable to check password against user backend: Dummy', ['exception' => $exception]);
+
+		$manager = new Manager($this->config, $this->cacheFactory, $this->eventDispatcher, $this->logger);
+		$manager->registerBackend($backend);
+
+		$this->assertFalse($manager->checkPasswordNoLogging('foo', 'bar'));
+	}
+
 	public function testCheckPasswordNotSupported(): void {
 		$backend = $this->createMock(\Test\Util\User\Dummy::class);
 		$backend->expects($this->never())