[statistics] Count the times we lost the connection to the MSC.
diff --git a/openbsc/src/nat/bsc_nat.c b/openbsc/src/nat/bsc_nat.c
index e679a91..65e491d 100644
--- a/openbsc/src/nat/bsc_nat.c
+++ b/openbsc/src/nat/bsc_nat.c
@@ -334,6 +334,8 @@
 {
 	struct bsc_connection *bsc, *tmp;
 
+	counter_inc(nat->stats.msc.reconn);
+
 	LOGP(DMSC, LOGL_ERROR, "Closing all connections downstream.\n");
 	llist_for_each_entry_safe(bsc, tmp, &nat->bsc_connections, list_entry)
 		remove_bsc_connection(bsc);