diff --git a/OrcanodeMonitor/Core/Fetcher.cs b/OrcanodeMonitor/Core/Fetcher.cs
index 8f4261e..d8dce62 100644
--- a/OrcanodeMonitor/Core/Fetcher.cs
+++ b/OrcanodeMonitor/Core/Fetcher.cs
@@ -35,7 +35,8 @@ public class Fetcher
         private static string _orcaHelloHydrophonesUrl = "https://aifororcasdetections2.azurewebsites.net/api/hydrophones";
         private static DateTime _unixEpoch = new DateTime(1970, 1, 1, 0, 0, 0, 0, DateTimeKind.Utc);
         private static string _iftttServiceKey = Environment.GetEnvironmentVariable("IFTTT_SERVICE_KEY") ?? "<unknown>";
-        private static string _defaultS3Bucket = "streaming-orcasound-net";
+        private static string _defaultProdS3Bucket = "audio-orcasound-net";
+        private static string _defaultDevS3Bucket = "dev-streaming-orcasound-net";
         public static string IftttServiceKey => _iftttServiceKey;
 
         /// <summary>
@@ -365,12 +366,12 @@ public async static Task UpdateDataplicityDataAsync(OrcanodeMonitorContext conte
                         string dataplicityName = name.ToString();
                         node.DataplicityName = dataplicityName;
 
-                        if (node.S3Bucket.IsNullOrEmpty())
+                        if (node.S3Bucket.IsNullOrEmpty() || (node.OrcasoundStatus == OrcanodeOnlineStatus.Absent))
                         {
-                            node.S3Bucket = _defaultS3Bucket;
+                            node.S3Bucket = dataplicityName.ToLower().StartsWith("dev") ? _defaultDevS3Bucket : _defaultProdS3Bucket;
                         }
 
-                        if (node.S3NodeName.IsNullOrEmpty())
+                        if (node.S3NodeName.IsNullOrEmpty() || (node.OrcasoundStatus == OrcanodeOnlineStatus.Absent))
                         {
                             // Fill in a non-authoritative default S3 node name.
                             // Orcasound is authoritative here since our default is
@@ -747,6 +748,12 @@ public async static Task UpdateS3DataAsync(OrcanodeMonitorContext context, Orcan
                 node.LatestRecordedUtc = null;
                 return;
             }
+            if (response.StatusCode == HttpStatusCode.Forbidden)
+            {
+                // Access denied.
+                node.LatestRecordedUtc = DateTime.MinValue;
+                return;
+            }
             if (!response.IsSuccessStatusCode)
             {
                 return;
diff --git a/OrcanodeMonitor/Models/Orcanode.cs b/OrcanodeMonitor/Models/Orcanode.cs
index 2bd2c48..9a95799 100644
--- a/OrcanodeMonitor/Models/Orcanode.cs
+++ b/OrcanodeMonitor/Models/Orcanode.cs
@@ -18,6 +18,7 @@ public enum OrcanodeOnlineStatus
         Online,
         Unintelligible,
         Hidden,
+        Unauthorized,
     }
     public enum OrcanodeUpgradeStatus
     {
@@ -287,6 +288,10 @@ public OrcanodeOnlineStatus S3StreamStatus
                 {
                     return OrcanodeOnlineStatus.Absent;
                 }
+                if (LatestRecordedUtc == DateTime.MinValue)
+                {
+                    return OrcanodeOnlineStatus.Unauthorized;
+                }
                 if (!ManifestUpdatedUtc.HasValue || !LastCheckedUtc.HasValue)
                 {
                     return OrcanodeOnlineStatus.Absent;
diff --git a/OrcanodeMonitor/Pages/Index.cshtml b/OrcanodeMonitor/Pages/Index.cshtml
index 39962df..7b766f7 100644
--- a/OrcanodeMonitor/Pages/Index.cshtml
+++ b/OrcanodeMonitor/Pages/Index.cshtml
@@ -88,7 +88,7 @@
             else
             {
                 <td style="background-color: @Model.NodeS3BackgroundColor(item)">
-                    <a href="https://open.quiltdata.com/b/audio-orcasound-net/tree/@item.S3NodeName/" style="color: @Model.NodeS3TextColor(item)" target="_blank">
+                    <a href="https://open.quiltdata.com/b/@item.S3Bucket/tree/@item.S3NodeName/" style="color: @Model.NodeS3TextColor(item)" target="_blank">
                         @Html.DisplayFor(modelItem => item.S3StreamStatus)
                     </a>
                 </td>