diff --git a/src/PSProxmoxVE/Cmdlets/Connection/DisconnectPveServerCmdlet.cs b/src/PSProxmoxVE/Cmdlets/Connection/DisconnectPveServerCmdlet.cs
index 773a0a5..dc93b69 100644
--- a/src/PSProxmoxVE/Cmdlets/Connection/DisconnectPveServerCmdlet.cs
+++ b/src/PSProxmoxVE/Cmdlets/Connection/DisconnectPveServerCmdlet.cs
@@ -17,7 +17,8 @@ namespace PSProxmoxVE.Cmdlets.Connection
     {
         protected override void ProcessRecord()
         {
-            var sessionToDisconnect = Session ?? ModuleState.ActiveSession;
+            bool explicitSessionSupplied = MyInvocation.BoundParameters.ContainsKey(nameof(Session));
+            var sessionToDisconnect = explicitSessionSupplied ? Session : ModuleState.ActiveSession;
 
             if (sessionToDisconnect is null)
             {
@@ -28,11 +29,13 @@ namespace PSProxmoxVE.Cmdlets.Connection
             if (!ShouldProcess($"{sessionToDisconnect.Hostname}:{sessionToDisconnect.Port}", "Disconnect"))
                 return;
 
-            if (Session is null || sessionToDisconnect == ModuleState.ActiveSession)
+            if (!ReferenceEquals(sessionToDisconnect, ModuleState.ActiveSession))
             {
-                ModuleState.ActiveSession = null;
+                WriteWarning($"The supplied session for {sessionToDisconnect.Hostname}:{sessionToDisconnect.Port} is not the module-level session; nothing was changed. Discard the variable — PVE tickets cannot be revoked and expire on their own.");
+                return;
             }
 
+            ModuleState.ActiveSession = null;
             WriteVerbose($"Disconnected from {sessionToDisconnect.Hostname}:{sessionToDisconnect.Port}.");
         }
     }
diff --git a/tests/PSProxmoxVE.Tests/Connection/Disconnect-PveServer.Tests.ps1 b/tests/PSProxmoxVE.Tests/Connection/Disconnect-PveServer.Tests.ps1
index c5dea9b..e85e0dd 100644
--- a/tests/PSProxmoxVE.Tests/Connection/Disconnect-PveServer.Tests.ps1
+++ b/tests/PSProxmoxVE.Tests/Connection/Disconnect-PveServer.Tests.ps1
@@ -59,10 +59,15 @@ Describe 'Disconnect-PveServer' {
     }
 
     Context 'Active session lifecycle' {
-        It 'Should clear active session when disconnected without explicit -Session' {
-            Disconnect-PveServer -Confirm:$false -ErrorAction SilentlyContinue
-            $Module = Get-Module PSProxmoxVE
-            $Module.PrivateData.ModuleState.ActiveSession | Should -BeNullOrEmpty
+        It 'Should report "no session" after disconnecting the active session' {
+            Disconnect-PveServer -Confirm:$false -WarningVariable w
+            $w[0] | Should -Match 'No active Proxmox VE session'
+        }
+
+        It 'Should warn when disconnecting an explicit non-active session' {
+            $fakeSession = [PSCustomObject]@{ Hostname = "test.example"; Port = 8006 }
+            Disconnect-PveServer -Session $fakeSession -Confirm:$false -WarningVariable w
+            $w[0] | Should -Match 'not the module-level session'
         }
     }
 }