diff --git a/internal/monitoring/monitor.go b/internal/monitoring/monitor.go
index a29a7a9e5..1ce922551 100644
--- a/internal/monitoring/monitor.go
+++ b/internal/monitoring/monitor.go
@@ -1268,6 +1268,15 @@ func (m *Monitor) pollVMs(ctx context.Context, instanceName string, client PVECl
 func (m *Monitor) pollVMsWithNodes(ctx context.Context, instanceName string, client PVEClientInterface, nodes []proxmox.Node) {
 	var allVMs []models.VM
 	for _, node := range nodes {
+		// Skip offline nodes to avoid 595 errors when trying to access their resources
+		if node.Status != "online" {
+			log.Debug().
+				Str("node", node.Node).
+				Str("status", node.Status).
+				Msg("Skipping offline node for VM polling")
+			continue
+		}
+		
 		vms, err := client.GetVMs(ctx, node.Node)
 		if err != nil {
 			monErr := errors.NewMonitorError(errors.ErrorTypeAPI, "get_vms", instanceName, err).WithNode(node.Node)
@@ -1579,6 +1588,15 @@ func (m *Monitor) pollContainersWithNodes(ctx context.Context, instanceName stri
 
 	var allContainers []models.Container
 	for _, node := range nodes {
+		// Skip offline nodes to avoid 595 errors when trying to access their resources
+		if node.Status != "online" {
+			log.Debug().
+				Str("node", node.Node).
+				Str("status", node.Status).
+				Msg("Skipping offline node for container polling")
+			continue
+		}
+		
 		containers, err := client.GetContainers(ctx, node.Node)
 		if err != nil {
 			monErr := errors.NewMonitorError(errors.ErrorTypeAPI, "get_containers", instanceName, err).WithNode(node.Node)
diff --git a/pkg/proxmox/client.go b/pkg/proxmox/client.go
index 7038bbb5e..fdb76bb0a 100644
--- a/pkg/proxmox/client.go
+++ b/pkg/proxmox/client.go
@@ -268,8 +268,14 @@ func (c *Client) request(ctx context.Context, method, path string, data url.Valu
 			// Special case for 403 with API token - this is usually a permission issue
 			err = fmt.Errorf("API error 403 (Forbidden): The API token does not have sufficient permissions. Note: In Proxmox GUI, permissions must be set on the USER (not just the token). Please verify the user '%s@%s' has the required permissions", c.auth.user, c.auth.realm)
 		} else if resp.StatusCode == 595 {
-			// 595 is Proxmox "no ticket" error - usually means authentication failed
-			err = fmt.Errorf("API error 595: Authentication failed - please check your credentials")
+			// 595 can mean authentication failed OR trying to access an offline node in a cluster
+			// Check if this is a node-specific endpoint
+			if strings.Contains(req.URL.Path, "/nodes/") && strings.Count(req.URL.Path, "/") > 3 {
+				// This looks like a node-specific resource request
+				err = fmt.Errorf("API error 595: Cannot access node resource - node may be offline or credentials may be invalid")
+			} else {
+				err = fmt.Errorf("API error 595: Authentication failed - please check your credentials")
+			}
 		} else if resp.StatusCode == 401 {
 			err = fmt.Errorf("API error 401 (Unauthorized): Invalid credentials or token")
 		} else {