diff --git a/full-service/grafana_dashboards/default.json b/full-service/grafana_dashboards/default.json
index bb1abcb..b17ab28 100644
--- a/full-service/grafana_dashboards/default.json
+++ b/full-service/grafana_dashboards/default.json
@@ -495,7 +495,11 @@
               },
               {
                 "params": [],
-                "type": "mean"
+                "type": "last"
+              },
+              {
+                "params": [],
+                "type": "non_negative_difference"
               }
             ]
           ],
@@ -526,7 +530,7 @@
           "label": null,
           "logBase": 1,
           "max": null,
-          "min": null,
+	  "min": "0",
           "show": true
         },
         {
@@ -630,7 +634,11 @@
               },
               {
                 "params": [],
-                "type": "mean"
+                "type": "last"
+              },
+              {
+                "params": [],
+                "type": "non_negative_difference"
               }
             ]
           ],
@@ -661,7 +669,7 @@
           "label": null,
           "logBase": 1,
           "max": null,
-          "min": null,
+	  "min": "0",
           "show": true
         },
         {
@@ -898,4 +906,4 @@
   "title": "Modem",
   "uid": "KRgNDKwMz",
   "version": 11
-}
\ No newline at end of file
+}
diff --git a/scraper/downloaders.py b/scraper/downloaders.py
index 9326f36..abd2751 100644
--- a/scraper/downloaders.py
+++ b/scraper/downloaders.py
@@ -28,8 +28,8 @@ class RequestsDownloader(Downloader):
     """
     @staticmethod
     def download(url):
-        result = requests.get(url)
-
+        result = requests.get(url,timeout=10)
+        
         if result.status_code != 200:
             raise Exception("Received non-200 response.")