diff --git a/OpenSim/Services/Connectors/Hypergrid/GatekeeperServiceConnector.cs b/OpenSim/Services/Connectors/Hypergrid/GatekeeperServiceConnector.cs
index 77e3b20b22..f5b59823e6 100644
--- a/OpenSim/Services/Connectors/Hypergrid/GatekeeperServiceConnector.cs
+++ b/OpenSim/Services/Connectors/Hypergrid/GatekeeperServiceConnector.cs
@@ -86,7 +86,7 @@ namespace OpenSim.Services.Connectors.Hypergrid
             paramList.Add(hash);
 
             XmlRpcRequest request = new XmlRpcRequest("link_region", paramList);
-            string uri = "http://" + ((info.ServerURI == string.Empty) ? info.ExternalEndPoint.Address + ":" + info.HttpPort + "/" : info.ServerURI);
+            string uri = "http://" + ((info.ServerURI != null && info.ServerURI != string.Empty && !info.ServerURI.StartsWith("http:")) ? info.ServerURI : info.ExternalEndPoint.Address + ":" + info.HttpPort + "/" );
             m_log.Debug("[GATEKEEPER SERVICE CONNECTOR]: Linking to " + uri);
             XmlRpcResponse response = null;
             try
@@ -188,7 +188,7 @@ namespace OpenSim.Services.Connectors.Hypergrid
             paramList.Add(hash);
 
             XmlRpcRequest request = new XmlRpcRequest("get_region", paramList);
-            string uri = "http://" + ((gatekeeper.ServerURI == string.Empty) ? gatekeeper.ExternalEndPoint.Address + ":" + gatekeeper.HttpPort + "/" : gatekeeper.ServerURI);
+            string uri = "http://" + ((gatekeeper.ServerURI != null && gatekeeper.ServerURI != string.Empty && !gatekeeper.ServerURI.StartsWith("http:")) ? gatekeeper.ServerURI : gatekeeper.ExternalEndPoint.Address + ":" + gatekeeper.HttpPort + "/");
             m_log.Debug("[GATEKEEPER SERVICE CONNECTOR]: contacting " + uri);
             XmlRpcResponse response = null;
             try
diff --git a/OpenSim/Services/Connectors/Simulation/SimulationServiceConnector.cs b/OpenSim/Services/Connectors/Simulation/SimulationServiceConnector.cs
index 6d852f1048..a8ed66d100 100644
--- a/OpenSim/Services/Connectors/Simulation/SimulationServiceConnector.cs
+++ b/OpenSim/Services/Connectors/Simulation/SimulationServiceConnector.cs
@@ -107,7 +107,7 @@ namespace OpenSim.Services.Connectors.Simulation
             string uri = string.Empty;
 
             // HACK -- Simian grid make it work!!!
-            if (destination.ServerURI != string.Empty)
+            if (destination.ServerURI != null && destination.ServerURI != string.Empty && !destination.ServerURI.StartsWith("http:"))
                 uri = "http://" + destination.ServerURI + AgentPath() + aCircuit.AgentID + "/";
             else
             {