Update to 3.5.2 and .net core 2.1

1 files changed, 5 insertions, 4 deletions

diff --git a/Mono.Nat/Upnp/Searchers/UpnpSearcher.cs b/Mono.Nat/Upnp/Searchers/UpnpSearcher.cs
index d9b16dd81..7c1e89d3b 100644
--- a/Mono.Nat/Upnp/Searchers/UpnpSearcher.cs
+++ b/Mono.Nat/Upnp/Searchers/UpnpSearcher.cs
@@ -46,7 +46,6 @@ namespace Mono.Nat
     internal class UpnpSearcher : ISearcher
     {
         public event EventHandler<DeviceEventArgs> DeviceFound;
-        public event EventHandler<DeviceEventArgs> DeviceLost;
 
         private DateTime nextSearch;
         private readonly ILogger _logger;
@@ -64,8 +63,11 @@ namespace Mono.Nat
 
         public async Task Handle(IPAddress localAddress, UpnpDeviceInfo deviceInfo, IPEndPoint endpoint)
         {
-            // No matter what, this method should never throw an exception. If something goes wrong
-            // we should still be in a position to handle the next reply correctly.
+            if (localAddress == null)
+            {
+                throw new ArgumentNullException("localAddress");
+            }
+
             try
             {
                 /* For UPnP Port Mapping we need ot find either WANPPPConnection or WANIPConnection. 
@@ -82,7 +84,6 @@ namespace Mono.Nat
                 // We have an internet gateway device now
                 UpnpNatDevice d = new UpnpNatDevice(localAddress, deviceInfo, endpoint, string.Empty, _logger, _httpClient);
 
-                NatUtility.Log("Fetching service list: {0}", d.HostEndPoint);
                 await d.GetServicesList().ConfigureAwait(false);
 
                 OnDeviceFound(new DeviceEventArgs(d));