diff --git a/Netch/Controllers/MainController.cs b/Netch/Controllers/MainController.cs
index c28969a1cf..305aa42da8 100644
--- a/Netch/Controllers/MainController.cs
+++ b/Netch/Controllers/MainController.cs
@@ -193,7 +193,17 @@ public static void TryReleaseTcpPort(ushort port, string portName)
         {
             foreach (var p in PortHelper.GetProcessByUsedTcpPort(port))
             {
-                if (p.MainModule!.FileName.StartsWith(Global.NetchDir))
+                try
+                {
+                    _ = p.MainModule!.FileName;
+                }
+                catch (Exception e)
+                {
+                    Logging.Warning(e.ToString());
+                    continue;
+                }
+
+                if (p.MainModule.FileName.StartsWith(Global.NetchDir))
                 {
                     p.Kill();
                     p.WaitForExit();
diff --git a/Netch/Utils/PortHelper.cs b/Netch/Utils/PortHelper.cs
index 459ecd881d..27df68cc15 100644
--- a/Netch/Utils/PortHelper.cs
+++ b/Netch/Utils/PortHelper.cs
@@ -33,7 +33,7 @@ public static IEnumerable<Process> GetProcessByUsedTcpPort(ushort port)
             if (port == 0)
                 throw new ArgumentOutOfRangeException();
 
-            var row = GetTcpTable2().Where(r => ntohs((ushort) r.dwLocalPort) == port);
+            var row = GetTcpTable2().Where(r => ntohs((ushort) r.dwLocalPort) == port).Where(r => r.dwOwningPid is not (0 or 4));
 
             return row.Select(r => Process.GetProcessById((int) r.dwOwningPid));
         }