diff -rupN pjproject-2.5.5/pjnath/src/pjnath/ice_strans.c pjproject-2.5.5-new/pjnath/src/pjnath/ice_strans.c
--- pjproject-2.5.5/pjnath/src/pjnath/ice_strans.c	2016-06-29 07:53:10.000000000 +0200
+++ pjproject-2.5.5-new/pjnath/src/pjnath/ice_strans.c	2017-01-05 14:15:09.160519076 +0100
@@ -1297,6 +1297,9 @@ PJ_DEF(pj_status_t) pj_ice_strans_start_
 	    pj_sockaddr addrs[PJ_ICE_ST_MAX_CAND];
 	    unsigned j, count=0;
 
+		if (!comp->turn[n].sock)
+			continue;
+
 	    /* Gather remote addresses for this component */
 	    for (j=0; j<rem_cand_cnt && count<PJ_ARRAY_SIZE(addrs); ++j) {
 		if (rem_cand[j].comp_id==i+1 &&
@@ -1989,6 +1992,39 @@ static void turn_on_state(pj_turn_sock *
 
 	sess_init_update(comp->ice_st);
 
+    } else if ((old_state == PJ_TURN_STATE_RESOLVING || old_state == PJ_TURN_STATE_ALLOCATING) &&
+               new_state >= PJ_TURN_STATE_DEALLOCATING)
+    {
+        pj_ice_sess_cand *cand = NULL;
+        unsigned i;
+
+        /* DNS resolution has failed! */
+        ++comp->turn[tp_idx].err_cnt;
+
+        /* Unregister ourself from the TURN relay */
+        pj_turn_sock_set_user_data(turn_sock, NULL);
+        comp->turn[tp_idx].sock = NULL;
+
+        /* Wait until initialization completes */
+        pj_grp_lock_acquire(comp->ice_st->grp_lock);
+
+        /* Find relayed candidate in the component */
+        for (i=0; i<comp->cand_cnt; ++i) {
+            if (comp->cand_list[i].type == PJ_ICE_CAND_TYPE_RELAYED &&
+                comp->cand_list[i].transport_id == data->transport_id)
+            {
+                cand = &comp->cand_list[i];
+                break;
+            }
+        }
+        pj_assert(cand != NULL);
+
+        pj_grp_lock_release(comp->ice_st->grp_lock);
+
+        cand->status = old_state == PJ_TURN_STATE_RESOLVING ? PJ_ERESOLVE : PJ_EINVALIDOP;
+
+        sess_init_update(comp->ice_st);
+
     } else if (new_state >= PJ_TURN_STATE_DEALLOCATING) {
 	pj_turn_session_info info;
 
diff -rupN pjproject-2.5.5/pjnath/src/pjnath/turn_session.c pjproject-2.5.5-new/pjnath/src/pjnath/turn_session.c
--- pjproject-2.5.5/pjnath/src/pjnath/turn_session.c	2016-07-13 11:57:26.000000000 +0200
+++ pjproject-2.5.5-new/pjnath/src/pjnath/turn_session.c	2017-01-05 14:15:09.160519076 +0100
@@ -651,7 +651,7 @@ PJ_DEF(pj_status_t) pj_turn_session_set_
 	PJ_ASSERT_RETURN(default_port>0 && default_port<65536, PJ_EINVAL);
 	sess->default_port = (pj_uint16_t)default_port;
 
-	cnt = PJ_TURN_MAX_DNS_SRV_CNT;
+	cnt = 1;
 	ai = (pj_addrinfo*)
 	     pj_pool_calloc(sess->pool, cnt, sizeof(pj_addrinfo));