diff --git a/OpenSim/Services/Connectors/SimianGrid/SimianAssetServiceConnector.cs b/OpenSim/Services/Connectors/SimianGrid/SimianAssetServiceConnector.cs
index 99e69838ab..caeabb7abf 100644
--- a/OpenSim/Services/Connectors/SimianGrid/SimianAssetServiceConnector.cs
+++ b/OpenSim/Services/Connectors/SimianGrid/SimianAssetServiceConnector.cs
@@ -116,6 +116,12 @@ namespace OpenSim.Services.Connectors.SimianGrid
 
         public AssetBase Get(string id)
         {
+            if (String.IsNullOrEmpty(m_serverUrl))
+            {
+                m_log.Error("[SIMIAN ASSET CONNECTOR]: No AssetServerURI configured");
+                throw new InvalidOperationException();
+            }
+
             // Cache fetch
             if (m_cache != null)
             {
@@ -142,6 +148,12 @@ namespace OpenSim.Services.Connectors.SimianGrid
         /// <returns></returns>
         public AssetMetadata GetMetadata(string id)
         {
+            if (String.IsNullOrEmpty(m_serverUrl))
+            {
+                m_log.Error("[SIMIAN ASSET CONNECTOR]: No AssetServerURI configured");
+                throw new InvalidOperationException();
+            }
+
             AssetMetadata metadata = null;
 
             // Cache fetch
@@ -213,6 +225,12 @@ namespace OpenSim.Services.Connectors.SimianGrid
         /// <returns>True if the id was parseable, false otherwise</returns>
         public bool Get(string id, Object sender, AssetRetrieved handler)
         {
+            if (String.IsNullOrEmpty(m_serverUrl))
+            {
+                m_log.Error("[SIMIAN ASSET CONNECTOR]: No AssetServerURI configured");
+                throw new InvalidOperationException();
+            }
+
             // Cache fetch
             if (m_cache != null)
             {
@@ -243,6 +261,12 @@ namespace OpenSim.Services.Connectors.SimianGrid
         /// <returns></returns>
         public string Store(AssetBase asset)
         {
+            if (String.IsNullOrEmpty(m_serverUrl))
+            {
+                m_log.Error("[SIMIAN ASSET CONNECTOR]: No AssetServerURI configured");
+                throw new InvalidOperationException();
+            }
+
             bool storedInCache = false;
             string errorMessage = null;
 
@@ -375,6 +399,12 @@ namespace OpenSim.Services.Connectors.SimianGrid
         /// <returns></returns>
         public bool Delete(string id)
         {
+            if (String.IsNullOrEmpty(m_serverUrl))
+            {
+                m_log.Error("[SIMIAN ASSET CONNECTOR]: No AssetServerURI configured");
+                throw new InvalidOperationException();
+            }
+
             //string errorMessage = String.Empty;
             string url = m_serverUrl + id;