From 8524b894d637b936a5b8dc3bc652f2ce4f2e0b8b Mon Sep 17 00:00:00 2001
From: "J. Nick Koston" <nick@koston.org>
Date: Sun, 14 Dec 2025 13:47:11 -0600
Subject: [PATCH] [ota] Match client timeout to device timeout to prevent
 premature failures (#12484)

---
 esphome/espota2.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/esphome/espota2.py b/esphome/espota2.py
index c29506224c..6349ad0fa8 100644
--- a/esphome/espota2.py
+++ b/esphome/espota2.py
@@ -322,8 +322,8 @@ def perform_ota(
         hash_func, nonce_size, hash_name = _AUTH_METHODS[auth]
         perform_auth(sock, password, hash_func, nonce_size, hash_name)
 
-    # Set higher timeout during upload
-    sock.settimeout(30.0)
+    # Timeout must match device-side OTA_SOCKET_TIMEOUT_DATA to prevent premature failures
+    sock.settimeout(90.0)
 
     upload_size = len(upload_contents)
     upload_size_encoded = [