dhcp: Continuously try to rebind in t2 (if failed in t1)

The root cause of this issue is big UDP traffic consuming the buffer so the DHCP doesn't have the bandwitdh to access the Tx buffer. More info espressif/esp-lwip!217 Ref IDF-4817
espressif · Mar 25, 2022 · 0633e7d · 0633e7d
1 parent 729d724
commit 0633e7d
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/src/core/ipv4/dhcp.c b/src/core/ipv4/dhcp.c
@@ -562,6 +562,11 @@ dhcp_timeout(struct netif *netif)
       dhcp_discover(netif);
     }
   }
+#if ESP_LWIP
+  else if (dhcp->state == DHCP_STATE_REBINDING) {
+    dhcp->t2_rebind_time = 1;
+  }
+#endif /* ESP_LWIP */
 }
 
 /**