From eafb8cf6525abe6a1031cd2b7a9d028a3c078053 Mon Sep 17 00:00:00 2001
From: BaronGreenback <jimcartlidge@yahoo.co.uk>
Date: Wed, 10 Mar 2021 19:27:22 +0000
Subject: [PATCH] Null Pointer fix

---
 RSSDP/SsdpDeviceLocator.cs | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/RSSDP/SsdpDeviceLocator.cs b/RSSDP/SsdpDeviceLocator.cs
index 0cdc5ce3db..e2b524cf46 100644
--- a/RSSDP/SsdpDeviceLocator.cs
+++ b/RSSDP/SsdpDeviceLocator.cs
@@ -27,14 +27,14 @@ namespace Rssdp.Infrastructure
         /// </summary>
         public SsdpDeviceLocator(ISsdpCommunicationsServer communicationsServer)
         {
-            if (communicationsServer == null)
+            _CommunicationsServer = communicationsServer;
+
+            if (communicationsServer != null)
             {
-                throw new ArgumentNullException(nameof(communicationsServer));
+                // This can occur is dlna is enabled, but defined to run over https.
+                _CommunicationsServer.ResponseReceived += CommsServer_ResponseReceived;
             }
 
-            _CommunicationsServer = communicationsServer;
-            _CommunicationsServer.ResponseReceived += CommsServer_ResponseReceived;
-
             _Devices = new List<DiscoveredSsdpDevice>();
         }