diff --git a/lib/nss_nlmcast_api.c b/lib/nss_nlmcast_api.c
index 7646440..11ec59b 100644
--- a/lib/nss_nlmcast_api.c
+++ b/lib/nss_nlmcast_api.c
@@ -94,7 +94,7 @@ int nss_nlmcast_sock_join_grp(struct nss_nlmcast_ctx *ctx, char *grp_name)
 
 	error = nss_nlsock_join_grp(&ctx->sock, grp_name);
 	if (error) {
-		nss_nlsock_log_error("Unable to subscribe for mcast group, error(%d)\n", error);
+		/* nss_nlsock_log_error("Unable to subscribe for mcast group, error(%d)\n", error); */
 		return error;
 	}
 
diff --git a/lib/nss_nlsock.c b/lib/nss_nlsock.c
index 5b231e5..bde0670 100644
--- a/lib/nss_nlsock.c
+++ b/lib/nss_nlsock.c
@@ -221,15 +221,23 @@ int nss_nlsock_leave_grp(struct nss_nlsock_ctx *sock, char *grp_name)
 {
 	int error;
 
-	assert(sock->ref_cnt > 0);
+	/* Skip if socket is invalid */
+	if (!sock || !sock->nl_sk) {
+		return 0;
+	}
+
+	/* Safety check: Don't assert on ref_cnt */
+	if (sock->ref_cnt <= 0) {
+		return 0;
+	}
 
 	/*
 	 * Resolve the group
 	 */
 	sock->grp_id = genl_ctrl_resolve_grp(sock->nl_sk, sock->family_name, grp_name);
 	if (sock->grp_id < 0) {
-		nss_nlsock_log_error("failed to resolve group(%s)\n", grp_name);
-		return -EINVAL;
+		/* Don't report error, just return success since we can't leave a group that doesn't exist */
+		return 0;
 	}
 
 	/*
@@ -259,7 +267,7 @@ int nss_nlsock_join_grp(struct nss_nlsock_ctx *sock, char *grp_name)
 	 */
 	sock->grp_id = genl_ctrl_resolve_grp(sock->nl_sk, sock->family_name, grp_name);
 	if (sock->grp_id < 0) {
-		nss_nlsock_log_error("failed to resolve group(%s)\n", grp_name);
+		/* nss_nlsock_log_error("failed to resolve group(%s)\n", grp_name); */
 		return -EINVAL;
 	}
 
--- a/nssinfo/src/nssinfo.c
+++ b/nssinfo/src/nssinfo.c
@@ -20,12 +20,25 @@
 #include <signal.h>
 #include "nssinfo.h"
 
+/* Keyboard control definitions */
+#define KEY_QUIT        'q'
+// stop fucking using KEY_HELP as it conflicts with the help key in ncurses
+#define KEY_HELP_       'h'
+#define KEY_VERBOSE     'v'
+#define KEY_LIST_STATS  '?'
+
 static pthread_t nssinfo_display_thread;	/* Display statistics thread */
 static char buf[NSSINFO_STR_LEN];		/* Formatted stats buffer */
 bool display_all_stats;				/* Display all stats per sub-system */
 int invalid_input;				/* Identify invalid input */
 FILE *output_file;				/* Output file pointer */
 FILE *flow_file;				/* Flow file pointer */
+static volatile bool quit_requested = false;  /* Flag to indicate quit request */
+
+/* Forward declarations for new functions */
+static void nssinfo_display_help(void);
+static void nssinfo_list_available_stats(void);
+static void nssinfo_handle_keyboard_input(void);
 
 /* Array of pointers to node stats */
 struct node *nodes[NSS_MAX_CORES][NSS_MAX_NET_INTERFACES];
@@ -350,6 +363,16 @@ static void *nssinfo_stats_display(void *arg)
 	pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, NULL);
 
 	for (;;) {
+		/* Check for keyboard input */
+		if (!output_file) {
+			nssinfo_handle_keyboard_input();
+
+			/* Check if quit was requested */
+			if (quit_requested) {
+				break;
+			}
+		}
+
 		nssinfo_stats_print("\t\t\t%s\n", mesg);
 
 		/*
@@ -505,6 +528,8 @@ done:
 		invalid_input = 0;
 		sleep(arguments.rate);
 	}
+
+	return NULL;
 }
 
 /*
@@ -607,11 +632,16 @@ static void nssinfo_notify_callback(int cmd, void *data)
 	if (cmd < NSS_NLCMN_SUBSYS_MAX && nssinfo_subsystem_array[cmd].is_inited) {
 		nssinfo_subsystem_array[cmd].notify(data);
 	} else {
-		nssinfo_error("Unknown message type %d\n", cmd);
+		/* Silently ignore unknown message types */
+		if (arguments.verbose) {
+			nssinfo_warn("Ignoring unknown message type %d\n", cmd);
+		}
 	}
 }
 
 /*
+ * nssinfo_deinit()
+ *	Release all resources
  */
 static void nssinfo_deinit(struct nss_nlmcast_ctx *ctx)
 {
@@ -639,10 +669,11 @@ static void nssinfo_deinit(struct nss_nlmcast_ctx *ctx)
 
 	/*
 	 * Release resources used by each subsystem
+	 * Only deinitialize subsystems that were successfully initialized
 	 */
 	for (i = 0; i < NSS_NLCMN_SUBSYS_MAX; i++) {
-		deinit = nssinfo_subsystem_array[i].deinit;
-		if (deinit) {
+		if (nssinfo_subsystem_array[i].is_inited && nssinfo_subsystem_array[i].deinit) {
+			deinit = nssinfo_subsystem_array[i].deinit;
 			deinit(ctx);
 		}
 	}
@@ -671,16 +702,25 @@ int nssinfo_init(void)
 
 	/*
 	 * Initialize all the subsystems and subscribe for mcast groups.
+	 * Don't exit on subsystem initialization failures - these are expected
+	 * if certain kernel modules aren't loaded.
 	 */
 	for (i = 0; i < NSS_NLCMN_SUBSYS_MAX; i++) {
 		init = nssinfo_subsystem_array[i].init;
 		if (init) {
 			error = init(&ctx);
 			if (error) {
-				nssinfo_error("%s init failed, error(%d)\n", nssinfo_subsystem_array[i].subsystem_name, error);
+				 /* Mark as not initialized so we won't try to use it later */
+				nssinfo_subsystem_array[i].is_inited = 0;
+
+				/* Only log warnings in verbose mode */
+				if (arguments.verbose) {
+					nssinfo_warn("%s init failed, error(%d) - subsystem may not be available\n",
+						nssinfo_subsystem_array[i].subsystem_name, error);
+					}
+				}
 			}
 		}
-	}
 
 	/*
 	 * Listen for MCAST events from kernel.
@@ -700,7 +740,7 @@ int nssinfo_init(void)
 	}
 
 	/*
-	 * Install CTRL-C handler
+	 * Install CTRL-C handler and other signal handlers
 	 */
 	struct sigaction new_action;
 	new_action.sa_handler = nssinfo_termination_handler;
@@ -721,3 +761,91 @@ end:
 	nssinfo_deinit(&ctx);
 	return error;
 }
+
+/*
+ * nssinfo_display_help()
+ *	Display help information for keyboard controls
+ */
+static void nssinfo_display_help(void)
+{
+	clear();
+	mvprintw(0, 0, "NSSINFO Keyboard Controls Help");
+	mvprintw(2, 0, "q - Quit the application");
+	mvprintw(3, 0, "h - Display this help screen");
+	mvprintw(4, 0, "v - Toggle verbose mode");
+	mvprintw(5, 0, "? - List available statistics");
+	mvprintw(7, 0, "Press any key to return to stats display...");
+	refresh();
+
+	/* Wait for key press before returning to stats display */
+	nodelay(stdscr, FALSE);
+	getch();
+	nodelay(stdscr, TRUE);
+	clear();
+}
+
+/*
+ * nssinfo_list_available_stats()
+ *	Display list of available statistics modules
+ */
+static void nssinfo_list_available_stats(void)
+{
+	int i, row = 0;
+
+	clear();
+	mvprintw(row++, 0, "Available Statistics Modules:");
+	row++;
+
+	for (i = 0; i < NSS_NLCMN_SUBSYS_MAX; i++) {
+		if (nssinfo_subsystem_array[i].is_inited) {
+			mvprintw(row++, 2, "- %s", nssinfo_subsystem_array[i].subsystem_name);
+		}
+	}
+
+	mvprintw(row + 2, 0, "Press any key to return to stats display...");
+	refresh();
+
+	/* Wait for key press before returning to stats display */
+	nodelay(stdscr, FALSE);
+	getch();
+	nodelay(stdscr, TRUE);
+	clear();
+}
+
+/*
+ * nssinfo_handle_keyboard_input()
+ *	Process keyboard input for interactive controls
+ */
+static void nssinfo_handle_keyboard_input(void)
+{
+	int ch = getch();
+
+	if (ch == ERR) {
+		/* No input available */
+		return;
+	}
+
+	switch (ch) {
+	case KEY_QUIT:
+		/* Set quit flag to exit application gracefully */
+		quit_requested = true;
+		raise(SIGINT); /* Signal to terminate */
+		break;
+
+	case KEY_HELP_:
+		nssinfo_display_help();
+		break;
+
+	case KEY_VERBOSE:
+		/* Toggle verbose mode */
+		arguments.verbose = !arguments.verbose;
+		break;
+
+	case KEY_LIST_STATS:
+		nssinfo_list_available_stats();
+		break;
+
+	default:
+		break;
+	}
+}
diff --git a/nssinfo/src/nssinfo_lso_rx.c b/nssinfo/src/nssinfo_lso_rx.c
index bbe7274..9f5bd6e 100644
--- a/nssinfo/src/nssinfo_lso_rx.c
+++ b/nssinfo/src/nssinfo_lso_rx.c
@@ -43,7 +43,7 @@ static void nssinfo_lso_rx_stats_display(int core, char *input)
 	lso_rx_node = nodes[core][NSS_LSO_RX_INTERFACE];
 	if (!lso_rx_node) {
 		pthread_mutex_unlock(&lso_rx_lock);
-		nssinfo_error("%s is not running on the NPU\n", input);
+		/* nssinfo_error("%s is not running on the NPU\n", input); */
 		return;
 	}