diff --git a/Assets/Scripts/EndpointLoader.cs b/Assets/Scripts/EndpointLoader.cs
index d954010..46a5fb9 100644
--- a/Assets/Scripts/EndpointLoader.cs
+++ b/Assets/Scripts/EndpointLoader.cs
@@ -19,7 +19,7 @@ public class EndpointLoader : MonoBehaviour
     private const string defaultEndpoint2 = "http://windows.local:8200/mystream/";
     private bool defaultEndpoint1Loaded = false;
     private bool defaultEndpoint2Loaded = false;
-    private List<MdnsService> availableServices = new List<MdnsService>();
+    private HashSet<MdnsService> availableServices = new HashSet<MdnsService>();
 
     private void Start()
     {
@@ -112,9 +112,11 @@ public class EndpointLoader : MonoBehaviour
         triedMulticast = true;
         serviceDiscovery.StartListening((service) =>
         {
-            Debug.Log($"Received multicast message: {service.Host}");
-            availableServices.Add(service);
-            AddServiceToTable(service);
+            bool wasAdded = availableServices.Add(service);
+            if (wasAdded)
+            {
+                AddServiceToTable(service);
+            }
         });
     }
 
diff --git a/Assets/Scripts/MdnsService.cs b/Assets/Scripts/MdnsService.cs
index e47be4e..7fe2951 100644
--- a/Assets/Scripts/MdnsService.cs
+++ b/Assets/Scripts/MdnsService.cs
@@ -20,4 +20,23 @@ public class MdnsService
     {
         return $"IpAddress: {IpAddress}, Port: {Port}, Path: {Path}, Host: {Host}";
     }
+
+    public override bool Equals(object obj)
+    {
+        return obj is MdnsService service &&
+               IpAddress == service.IpAddress &&
+               Host == service.Host &&
+               Port == service.Port &&
+               Path == service.Path;
+    }
+
+    public override int GetHashCode()
+    {
+        int hash = 17;
+        hash = hash * 31 + (IpAddress?.GetHashCode() ?? 0);
+        hash = hash * 31 + Port.GetHashCode();
+        hash = hash * 31 + (Path?.GetHashCode() ?? 0);
+        hash = hash * 31 + (Host?.GetHashCode() ?? 0);
+        return hash;
+    }
 }