diff --git a/neutronclient/client.py b/neutronclient/client.py
index 50ef6b413..67e0d3f6b 100644
--- a/neutronclient/client.py
+++ b/neutronclient/client.py
@@ -226,6 +226,9 @@ class HTTPClient(httplib2.Http):
                               'password': self.password, },
                              'tenantName': self.tenant_name, }, }
 
+        if self.auth_url is None:
+            raise exceptions.NoAuthURLProvided()
+
         token_url = self.auth_url + "/tokens"
 
         # Make sure we follow redirects when trying to reach Keystone
@@ -250,6 +253,9 @@ class HTTPClient(httplib2.Http):
         self._extract_service_catalog(resp_body)
 
     def _get_endpoint_url(self):
+        if self.auth_url is None:
+            raise exceptions.NoAuthURLProvided()
+
         url = self.auth_url + '/tokens/%s/endpoints' % self.auth_token
         try:
             resp, body = self._cs_request(url, "GET")
diff --git a/neutronclient/common/exceptions.py b/neutronclient/common/exceptions.py
index 6e2541ad9..d7e3848be 100644
--- a/neutronclient/common/exceptions.py
+++ b/neutronclient/common/exceptions.py
@@ -151,6 +151,10 @@ class BadInputError(Exception):
     pass
 
 
+class NoAuthURLProvided(BadInputError):
+    message = _("auth_url was not provided to the Neutron client")
+
+
 class Error(Exception):
     def __init__(self, message=None):
         super(Error, self).__init__(message)
diff --git a/neutronclient/tests/unit/test_auth.py b/neutronclient/tests/unit/test_auth.py
index ddbf26813..b81d23614 100644
--- a/neutronclient/tests/unit/test_auth.py
+++ b/neutronclient/tests/unit/test_auth.py
@@ -148,6 +148,33 @@ class CLITestAuthKeystone(testtools.TestCase):
         self.mox.ReplayAll()
         self.client.do_request('/resource', 'GET')
 
+    def test_refresh_token_no_auth_url(self):
+        self.mox.StubOutWithMock(self.client, "request")
+        self.client.auth_url = None
+
+        self.client.auth_token = TOKEN
+        self.client.endpoint_url = ENDPOINT_URL
+
+        res401 = self.mox.CreateMock(httplib2.Response)
+        res401.status = 401
+
+        # If a token is expired, neutron server returns 401
+        self.client.request(
+            mox.StrContains(ENDPOINT_URL + '/resource'), 'GET',
+            headers=mox.ContainsKeyValue('X-Auth-Token', TOKEN)
+        ).AndReturn((res401, ''))
+        self.mox.ReplayAll()
+        self.assertRaises(exceptions.NoAuthURLProvided,
+                          self.client.do_request,
+                          '/resource',
+                          'GET')
+
+    def test_get_endpoint_url_with_invalid_auth_url(self):
+        # Handle the case when auth_url is not provided
+        self.client.auth_url = None
+        self.assertRaises(exceptions.NoAuthURLProvided,
+                          self.client._get_endpoint_url)
+
     def test_get_endpoint_url(self):
         self.mox.StubOutWithMock(self.client, "request")