diff --git a/shared/net/application_layer/dhcp_daemon.c b/shared/net/application_layer/dhcp_daemon.c
index 28c95612..8a9d0bed 100644
--- a/shared/net/application_layer/dhcp_daemon.c
+++ b/shared/net/application_layer/dhcp_daemon.c
@@ -329,12 +329,17 @@ static void dhcp_apply_offer(dhcp_packet *p, dhcp_request *req, uint32_t xid) {
         uint32_t t1_net;
         memcpy(&t1_net, &p->options[idx+2], 4);
         cfg_local.rt->t1 = __builtin_bswap32(t1_net);
+    }else {
+        cfg_local.rt->t1 = cfg_local.rt->lease / 2;
     }
+    
     idx = dhcp_parse_option(p, 59);
     if (idx != UINT16_MAX && p->options[idx+1] >= 4) {
         uint32_t t2_net;
         memcpy(&t2_net, &p->options[idx+2], 4);
         cfg_local.rt->t2 = __builtin_bswap32(t2_net);
+    } else {
+        cfg_local.rt->t2 = (cfg_local.rt->lease / 8) * 7;
     }
 
     idx = dhcp_parse_option(p, 54);