diff --git a/configdata.c b/configdata.c
index d6cde08d..0e55a161 100644
--- a/configdata.c
+++ b/configdata.c
@@ -881,6 +881,20 @@ struct ConfigFileSetting config_file_settings[] =
 		{ .strmaxlen = sizeof(config_file_options.ssh_options) },
 		{}
 	},
+	/* ==================================
+	 * undocumented experimental settings
+	 * ==================================
+	 */
+	/* reconnect_loop_sync */
+	{
+		"reconnect_loop_sync",
+		CONFIG_BOOL,
+		{ .boolptr = &config_file_options.reconnect_loop_sync },
+		{ .booldefault = false },
+		{},
+		{},
+		{}
+	},
 	/* ==========================
 	 * undocumented test settings
 	 * ==========================
diff --git a/configfile.h b/configfile.h
index 9cfe83ec..da2ae106 100644
--- a/configfile.h
+++ b/configfile.h
@@ -238,7 +238,17 @@ typedef struct
 	char		rsync_options[MAXLEN];
 	char		ssh_options[MAXLEN];
 
-	/* undocumented test settings */
+	/*
+	 * undocumented settings
+	 *
+	 * These settings are for testing or experimential features
+	 * and may be changed without notice.
+	 */
+
+	/* experimental settings */
+	bool		reconnect_loop_sync;
+
+	/* test settings */
 	int			promote_delay;
 	int			failover_delay;
 	char		connection_check_query[MAXLEN];
diff --git a/repmgrd-physical.c b/repmgrd-physical.c
index 8b5ca337..9e412947 100644
--- a/repmgrd-physical.c
+++ b/repmgrd-physical.c
@@ -5377,6 +5377,11 @@ try_primary_reconnect(PGconn **conn, PGconn *local_conn, t_node_info *node_info)
 
 	for (i = 0; i < max_attempts; i++)
 	{
+		time_t started_at = time(NULL);
+		int up_to;
+		bool sleep_now = false;
+		bool max_sleep_seconds;
+
 		log_info(_("checking state of node \"%s\" (ID: %i), %i of %i attempts"),
 				 node_info->node_name,
 				 node_info->node_id,
@@ -5442,12 +5447,31 @@ try_primary_reconnect(PGconn **conn, PGconn *local_conn, t_node_info *node_info)
 					   node_info->node_id);
 		}
 
-		if (i + 1 < max_attempts)
+		/*
+		 * Experimental behaviour, see GitHub #662.
+		 */
+		if (config_file_options.reconnect_loop_sync == true)
+		{
+			up_to = (time(NULL) - started_at);
+			max_sleep_seconds = (up_to == 0)
+				? config_file_options.reconnect_interval
+				: (up_to % config_file_options.reconnect_interval);
+			if (i + 1 <= max_attempts)
+				sleep_now = true;
+		}
+		else
+		{
+			max_sleep_seconds = config_file_options.reconnect_interval;
+			if (i + 1 < max_attempts)
+				sleep_now = true;
+		}
+
+		if (sleep_now == true)
 		{
 			int j;
-			log_info(_("sleeping %i seconds until next reconnection attempt"),
-					 config_file_options.reconnect_interval);
-			for (j = 0; j < config_file_options.reconnect_interval; j++)
+			log_info(_("sleeping up to %i seconds until next reconnection attempt"),
+					 max_sleep_seconds);
+			for (j = 0; j < max_sleep_seconds; j++)
 			{
 				int new_primary_node_id;
 				if (get_new_primary(local_conn, &new_primary_node_id) == true && new_primary_node_id != UNKNOWN_NODE_ID)