diff --git a/sys/net/gnrc/network_layer/ndp/gnrc_ndp.c b/sys/net/gnrc/network_layer/ndp/gnrc_ndp.c
index ed68300248..88ccce7fce 100644
--- a/sys/net/gnrc/network_layer/ndp/gnrc_ndp.c
+++ b/sys/net/gnrc/network_layer/ndp/gnrc_ndp.c
@@ -583,7 +583,6 @@ void gnrc_ndp_rtr_adv_handle(kernel_pid_t iface, gnrc_pktsnip_t *pkt, ipv6_hdr_t
     _stale_nc(iface, &ipv6->src, l2src, l2src_len);
 #ifdef MODULE_NG_SIXLOWPAN_ND
     if (if_entry->flags & GNRC_IPV6_NETIF_FLAGS_SIXLOWPAN) {
-        timex_t t = { 0, GNRC_NDP_RETRANS_TIMER };
         /* stop multicast router solicitation retransmission timer */
         vtimer_remove(&if_entry->rtr_sol_timer);
         /* 3/4 of the time should be "well before" enough the respective timeout
@@ -594,12 +593,9 @@ void gnrc_ndp_rtr_adv_handle(kernel_pid_t iface, gnrc_pktsnip_t *pkt, ipv6_hdr_t
          * "In all cases, the RS retransmissions are terminated when an RA is
          *  received."
          *  Hence, reset router solicitation counter and reset timer. */
-        &nc_entry->rtr_sol_count = 0;
+        if_entry->rtr_sol_count = 0;
         gnrc_sixlowpan_nd_rtr_sol_reschedule(nc_entry, next_rtr_sol);
-        gnrc_ndp_internal_send_nbr_sol(ifs[i], &nc_entry->ipv6_addr, &nc_entry->ipv6_addr);
-        vtimer_remove(&nc_entry->nbr_sol_timer);
-        vtimer_set_msg(&nc_entry->nbr_sol_timer, t, gnrc_ipv6_pid, GNRC_NDP_MSG_NBR_SOL_RETRANS,
-                       nc_entry);
+        gnrc_ndp_internal_send_nbr_sol(nc_entry->iface, &nc_entry->ipv6_addr, &nc_entry->ipv6_addr);
     }
 #endif
 }
diff --git a/sys/net/gnrc/network_layer/sixlowpan/nd/gnrc_sixlowpan_nd.c b/sys/net/gnrc/network_layer/sixlowpan/nd/gnrc_sixlowpan_nd.c
index 2b0d97acce..59f8f1b31b 100644
--- a/sys/net/gnrc/network_layer/sixlowpan/nd/gnrc_sixlowpan_nd.c
+++ b/sys/net/gnrc/network_layer/sixlowpan/nd/gnrc_sixlowpan_nd.c
@@ -254,9 +254,11 @@ uint8_t gnrc_sixlowpan_nd_opt_ar_handle(kernel_pid_t iface, ipv6_hdr_t *ipv6, ui
                 case SIXLOWPAN_ND_STATUS_SUCCESS:
                     DEBUG("6lo nd: address registration successful\n");
                     mutex_lock(&ipv6_iface->mutex);
+                    /* reschedule 1 minute before lifetime expires */
+                    timex_t t = { (uint32_t)(byteorder_ntohs(ar_opt->ltime) - 1) * 60, 0 };
                     vtimer_remove(&nc_entry->nbr_sol_timer);
-                    vtimer_set_msg(&nc_entry->nbr_sol_timer, ipv6_iface->retrans_timer,
-                                   gnrc_ipv6_pid, GNRC_NDP_MSG_NBR_SOL_RETRANS, nc_entry);
+                    vtimer_set_msg(&nc_entry->nbr_sol_timer, t, gnrc_ipv6_pid,
+                                   GNRC_NDP_MSG_NBR_SOL_RETRANS, nc_entry);
                     mutex_unlock(&ipv6_iface->mutex);
                     break;
                 case SIXLOWPAN_ND_STATUS_DUP: