diff --git a/client/thin/src/UDSClient.py b/client/thin/src/UDSClient.py
index 129a443a7..be9faaa6d 100644
--- a/client/thin/src/UDSClient.py
+++ b/client/thin/src/UDSClient.py
@@ -33,7 +33,7 @@ from __future__ import unicode_literals
 
 from uds import ui
 from uds import browser
-from uds.rest import RestRequest
+from uds.rest import RestRequest, RetryException
 from uds.forward import forward
 from uds import VERSION
 from uds.log import logger  # @UnresolvedImport
@@ -78,6 +78,16 @@ def approveHost(host):
     return approved
 
 
+def getWithRetry(rest, url):
+    while True:
+        try:
+            res = rest.get(url)
+            return res
+        except RetryException as e:
+            if ui.question('Service not available', '{}\nPlease, wait a minute and press "OK" to retry, or CANCEL to abort') is True:
+                continue
+            raise Exception('Cancelled by user')
+
 
 if __name__ == "__main__":
     logger.debug('Initializing connector')
@@ -113,16 +123,18 @@ if __name__ == "__main__":
     # Main requests part
     # First, get version
     try:
-        res = rest.get('')['result']
+        res = getWithRetry(rest, '')
+
         if res['requiredVersion'] > VERSION:
             ui.message("New UDS Client available", "A new uds version is needed in order to access this version of UDS. A browser will be openend for this download.")
             webbrowser.open(res['downloadUrl'])
             sys.exit(1)
 
         # Now get ticket
-        res = rest.get('/{}/{}'.format(ticket, scrambler), params={'hostname': tools.getHostName(), 'version': VERSION})
+        res = getWithRetry(rest, '/{}/{}'.format(ticket, scrambler), params={'hostname': tools.getHostName(), 'version': VERSION})
 
-    except KeyError as e:
-        logger.error('Got an exception access RESULT: {}'.format(e))
     except Exception as e:
-        logger.error('Got an unexpected exception: {}'.format(e))
+        error = 'ERROR: {}'.format(e)
+        logger.error(error)
+        ui.message('Error', error)
+        sys.exit(2)
diff --git a/client/thin/src/uds/rest.py b/client/thin/src/uds/rest.py
index 14cab73dc..cd7d039e4 100644
--- a/client/thin/src/uds/rest.py
+++ b/client/thin/src/uds/rest.py
@@ -39,8 +39,13 @@ import json
 import six
 import urllib
 
+
 from .log import logger
 
+class RetryException(Exception):
+    pass
+
+
 class RestRequest(object):
 
     restApiUrl = ''
@@ -54,19 +59,24 @@ class RestRequest(object):
         if params is not None:
             url += '?' + '&'.join('{}={}'.format(k, urllib.quote(six.text_type(v).encode('utf8'))) for k, v in params.iteritems())
 
+        logger.debug('Requesting {}'.format(url))
         try:
-            logger.debug('Requesting {}'.format(url))
             r = requests.get(url, headers={'Content-type': 'application/json'})
-            if r.ok:
-                logger.debug('Request was OK. {}'.format(r.text))
-                data = json.loads(r.text)
-            else:
-                logger.error('Error requesting {}: {}, {}'.format(url, r.code. r.text))
-                raise Exception('Error {}: {}'.format(r.code, r.text))
-        except Exception as e:
-            data = {
-                'result': None,
-                'error': six.text_type(e)
-            }
+        except requests.exceptions.ConnectionError as e:
+            raise Exception('Error connecting to UDS Server at {}'.format(self.restApiUrl[0:-11]))
+
+        if r.ok:
+            logger.debug('Request was OK. {}'.format(r.text))
+            data = json.loads(r.text)
+            if not 'error' in data:
+                return data['result']
+            # Has error
+            if data.get('retryable', '0') == '1':
+                raise RetryException(data['error'])
+
+            raise Exception(data['error'])
+        else:
+            logger.error('Error requesting {}: {}, {}'.format(url, r.code. r.text))
+            raise Exception('Error {}: {}'.format(r.code, r.text))
 
         return data
diff --git a/server/src/uds/core/util/Config.py b/server/src/uds/core/util/Config.py
index 4dc581bec..865ba5e19 100644
--- a/server/src/uds/core/util/Config.py
+++ b/server/src/uds/core/util/Config.py
@@ -321,6 +321,9 @@ class GlobalConfig(object):
     # Custom message for error when limiting by calendar
     LIMITED_BY_CALENDAR_TEXT = Config.section(GLOBAL_SECTION).value('Calendar access denied text', '', type=Config.TEXT_FIELD)  # Defaults to Nothing
 
+    # This is used so templates can change "styles" from admin interface
+    LOWERCASE_USERNAME = Config.section(SECURITY_SECTION).value('Convert username to lowercase', '1', type=Config.BOOLEAN_FIELD)
+
     initDone = False
 
     @staticmethod
diff --git a/server/src/uds/web/views/login.py b/server/src/uds/web/views/login.py
index 844162fc3..f243896bf 100644
--- a/server/src/uds/web/views/login.py
+++ b/server/src/uds/web/views/login.py
@@ -50,7 +50,7 @@ import uds.web.errors as errors
 import logging
 
 logger = logging.getLogger(__name__)
-__updated__ = '2017-04-19'
+__updated__ = '2017-06-01'
 
 # Allow cross-domain login
 # @csrf_exempt
@@ -93,6 +93,8 @@ def login(request, tag=None):
             except Exception:
                 authenticator = Authenticator()
             userName = form.cleaned_data['user']
+            if GlobalConfig.LOWERCASE_USERNAME.getBool(True) is True:
+                userName = userName.lower()
 
             cache = Cache('auth')
             cacheKey = str(authenticator.id) + userName