diff --git a/ldclient/polling.py b/ldclient/polling.py
index 81881d49..19ed0a7d 100644
--- a/ldclient/polling.py
+++ b/ldclient/polling.py
@@ -34,7 +34,6 @@ def run(self):
                     if not is_http_error_recoverable(e.status):
                         self._ready.set() # if client is initializing, make it stop waiting; has no effect if already inited
                         self.stop()
-                    break
                 except Exception as e:
                     log.exception(
                         'Error: Exception encountered when updating flags. %s' % e)
diff --git a/testing/stub_util.py b/testing/stub_util.py
index 07e5c2ec..bcb45ef2 100644
--- a/testing/stub_util.py
+++ b/testing/stub_util.py
@@ -29,8 +29,10 @@ class MockFeatureRequester(FeatureRequester):
     def __init__(self):
         self.all_data = {}
         self.exception = None
+        self.request_count = 0
 
     def get_all_data(self):
+        self.request_count += 1
         if self.exception is not None:
             raise self.exception
         return self.all_data
diff --git a/testing/test_polling_processor.py b/testing/test_polling_processor.py
index 06bae21d..113672f3 100644
--- a/testing/test_polling_processor.py
+++ b/testing/test_polling_processor.py
@@ -1,6 +1,7 @@
 import pytest
 import threading
 import time
+import mock
 
 from ldclient.config import Config
 from ldclient.feature_store import InMemoryFeatureStore
@@ -10,7 +11,6 @@
 from ldclient.versioned_data_kind import FEATURES, SEGMENTS
 from testing.stub_util import MockFeatureRequester, MockResponse
 
-config = Config()
 pp = None
 mock_requester = None
 store = None
@@ -47,21 +47,23 @@ def test_successful_request_puts_feature_data_in_store():
             "segkey": segment
         }
     }
-    setup_processor(config)
+    setup_processor(Config())
     ready.wait()
     assert store.get(FEATURES, "flagkey", lambda x: x) == flag
     assert store.get(SEGMENTS, "segkey", lambda x: x) == segment
     assert store.initialized
     assert pp.initialized()
 
-def test_general_connection_error_does_not_cause_immediate_failure():
+# Note that we have to mock Config.poll_interval because Config won't let you set a value less than 30 seconds
+
+@mock.patch('ldclient.config.Config.poll_interval', new_callable=mock.PropertyMock, return_value=0.1)
+def test_general_connection_error_does_not_cause_immediate_failure(ignore_mock):
     mock_requester.exception = Exception("bad")
     start_time = time.time()
-    setup_processor(config)
+    setup_processor(Config())
     ready.wait(0.3)
-    elapsed_time = time.time() - start_time
-    assert elapsed_time >= 0.2
     assert not pp.initialized()
+    assert mock_requester.request_count >= 2
 
 def test_http_401_error_causes_immediate_failure():
     verify_unrecoverable_http_error(401)
@@ -78,16 +80,23 @@ def test_http_429_error_does_not_cause_immediate_failure():
 def test_http_500_error_does_not_cause_immediate_failure():
     verify_recoverable_http_error(500)
 
-def verify_unrecoverable_http_error(status):
+def test_http_503_error_does_not_cause_immediate_failure():
+    verify_recoverable_http_error(503)
+
+@mock.patch('ldclient.config.Config.poll_interval', new_callable=mock.PropertyMock, return_value=0.1)
+def verify_unrecoverable_http_error(status, ignore_mock):
     mock_requester.exception = UnsuccessfulResponseException(status)
-    setup_processor(config)
-    finished = ready.wait(5.0)
+    setup_processor(Config())
+    finished = ready.wait(0.5)
     assert finished
     assert not pp.initialized()
+    assert mock_requester.request_count == 1
 
-def verify_recoverable_http_error(status):
+@mock.patch('ldclient.config.Config.poll_interval', new_callable=mock.PropertyMock, return_value=0.1)
+def verify_recoverable_http_error(status, ignore_mock):
     mock_requester.exception = UnsuccessfulResponseException(status)
-    setup_processor(config)
-    finished = ready.wait(0.2)
+    setup_processor(Config())
+    finished = ready.wait(0.5)
     assert not finished
     assert not pp.initialized()
+    assert mock_requester.request_count >= 2