diff --git a/tempest/scenario/test_dashboard_basic_ops.py b/tempest/scenario/test_dashboard_basic_ops.py
index eb018eb..8e91a6d 100644
--- a/tempest/scenario/test_dashboard_basic_ops.py
+++ b/tempest/scenario/test_dashboard_basic_ops.py
@@ -26,6 +26,7 @@
 class HorizonHTMLParser(HTMLParser.HTMLParser):
     csrf_token = None
     region = None
+    login = None
 
     def _find_name(self, attrs, name):
         for attrpair in attrs:
@@ -39,12 +40,20 @@
                 return attrpair[1]
         return None
 
+    def _find_attr_value(self, attrs, attr_name):
+        for attrpair in attrs:
+            if attrpair[0] == attr_name:
+                return attrpair[1]
+        return None
+
     def handle_starttag(self, tag, attrs):
         if tag == 'input':
             if self._find_name(attrs, 'csrfmiddlewaretoken'):
                 self.csrf_token = self._find_value(attrs)
             if self._find_name(attrs, 'region'):
                 self.region = self._find_value(attrs)
+        if tag == 'form':
+            self.login = self._find_attr_value(attrs, 'action')
 
 
 class TestDashboardBasicOps(manager.ScenarioTest):
@@ -79,8 +88,12 @@
         parser = HorizonHTMLParser()
         parser.feed(response)
 
+        # construct login url for dashboard, discovery accomodates non-/ web
+        # root for dashboard
+        login_url = CONF.dashboard.dashboard_url + parser.login[1:]
+
         # Prepare login form request
-        req = request.Request(CONF.dashboard.login_url)
+        req = request.Request(login_url)
         req.add_header('Content-type', 'application/x-www-form-urlencoded')
         req.add_header('Referer', CONF.dashboard.dashboard_url)
         params = {'username': username,