From dd937c39c92c73c74d7480d44f566efe88ea5108 Mon Sep 17 00:00:00 2001
From: Patrick Grote <patrick.grote@q-light.info>
Date: Fri, 10 May 2024 17:38:59 +0200
Subject: [PATCH] MInor fix

---
 ArtNetSharp/Communication/AbstractInstance.cs | 6 +++++-
 ArtNetTests/LoggingTests.cs                   | 2 +-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/ArtNetSharp/Communication/AbstractInstance.cs b/ArtNetSharp/Communication/AbstractInstance.cs
index 6cc5ba3..7e5cedd 100644
--- a/ArtNetSharp/Communication/AbstractInstance.cs
+++ b/ArtNetSharp/Communication/AbstractInstance.cs
@@ -378,7 +378,11 @@ private async Task sendArtPollReply(IPv4Address ownIp, IPv4Address destinationIp
             try
             {
                 await Task.Delay((int)(800 * _random.NextDouble())); //Art-Net 4 Protocol Release V1.4 Document Revision 1.4dh 19/7/2023 - 23 -
-                MACAddress ownMacAddress = ArtNetInstance.GetMacAdress(ownIp);
+
+                if (this.IsDisposing || this.IsDisposed || this.IsDeactivated)
+                    return;
+
+                MACAddress ownMacAddress = ArtNetInstance?.GetMacAdress(ownIp);
                 NodeStatus nodeStatus = getOwnNodeStatus();
                 NodeReport nodeReport = new NodeReport(ENodeReportCodes.RcPowerOk, "Everything ok.", artPollReplyCounter);
                 Net net = 0;
diff --git a/ArtNetTests/LoggingTests.cs b/ArtNetTests/LoggingTests.cs
index 3938252..557f74f 100644
--- a/ArtNetTests/LoggingTests.cs
+++ b/ArtNetTests/LoggingTests.cs
@@ -5,7 +5,7 @@ namespace ArtNetTests.Logging
 {
     public class LoggingTests
     {
-        [Test]
+        [Test, Order(-1)]
         public void TestLogging()
         {
             var logger = NullLoggerFactory.Instance.CreateLogger(nameof(LoggingTests));