diff --git a/app/Http/Controllers/Controller.php b/app/Http/Controllers/Controller.php
index da4ef86..f538c49 100644
--- a/app/Http/Controllers/Controller.php
+++ b/app/Http/Controllers/Controller.php
@@ -76,12 +76,14 @@ class Controller extends BaseController
     }
 
     /**
-     * گزینه‌های Guzzle/cURL — فقط وقتی افزونه curl و ثابت‌ها موجود باشند.
+     * Direct connect (no local VPN/proxy) + IPv4 + HTTP/1.1:
+     * dead 127.0.0.1 proxies, broken AAAA, and flaky HTTP/2 cause
+     * "Connection refused" / stream errors while browsers still work.
      *
-     * @param array<int, mixed> $curlOptions
-     * @return array<string, array<int, mixed>>
+     * @param  array<int, mixed>  $curlOptions
+     * @return array<string, mixed>
      */
-    public static function httpClientOptions(array $curlOptions = []): array
+    public static function httpClientOptions(array $curlOptions = [], ?float $timeout = null): array
     {
         $curl = $curlOptions;
 
@@ -92,7 +94,24 @@ class Controller extends BaseController
             }
         }
 
-        return $curl === [] ? [] : ['curl' => $curl];
+        if (defined('CURLOPT_HTTP_VERSION') && defined('CURL_HTTP_VERSION_1_1')) {
+            $verOpt = (int) constant('CURLOPT_HTTP_VERSION');
+            if (! array_key_exists($verOpt, $curl)) {
+                $curl[$verOpt] = (int) constant('CURL_HTTP_VERSION_1_1');
+            }
+        }
+
+        $options = ['proxy' => false];
+
+        if ($timeout !== null) {
+            $options['connect_timeout'] = min(5.0, max(2.0, (float) $timeout));
+        }
+
+        if ($curl !== []) {
+            $options['curl'] = $curl;
+        }
+
+        return $options;
     }
 
     public static function Send($to , $msg, $is_customer = true)
diff --git a/app/Http/Controllers/Site/PriceStreamController.php b/app/Http/Controllers/Site/PriceStreamController.php
index 4fc177a..e2943d1 100644
--- a/app/Http/Controllers/Site/PriceStreamController.php
+++ b/app/Http/Controllers/Site/PriceStreamController.php
@@ -52,7 +52,12 @@ class PriceStreamController extends Controller
             }
 
             $cache = app(LivePriceCacheService::class);
-            $last = $cache->get() ?? $cache->buildFromDatabase();
+            $config = app(\App\Services\ConfigService::class);
+            $last = $cache->get();
+            // کش ممکن است no_quote صفرِ کوتاه‌عمر داشته باشد؛ با build از montzar_live_price جبران کن
+            if (! is_array($last) || ! $config->payloadHasDisplayablePrice($last)) {
+                $last = $cache->buildFromDatabase();
+            }
             if (is_array($last) && $last !== []) {
                 if ($customerId > 0) {
                     $last = app(\App\Services\CustomerSpecialPricingService::class)
diff --git a/app/Http/Controllers/Site/ReportController.php b/app/Http/Controllers/Site/ReportController.php
index cf65a15..5136cdf 100644
--- a/app/Http/Controllers/Site/ReportController.php
+++ b/app/Http/Controllers/Site/ReportController.php
@@ -327,19 +327,19 @@ class ReportController extends Controller
 
                 $config->UpdateConfig('montzar_closed', 'false');
             } catch (\Throwable $e) {
-                $montzarLivePrice = 0;
-
                 \Log::error('MONZAR PRICE ERROR', [
                     'message' => $e->getMessage(),
                     'montzar_product_id' => $montzarProductId ?? null,
                     'montzar_response' => $montzar ?? null,
                 ]);
 
+                // قطع لحظه‌ای همکار → قیمت ذخیره‌شده را نگه دار و دوباره در تیک بعدی تلاش کن
                 $config->applyMontzarSyncFailure();
-                if (!$config->getBool('montzar_closed', true)) {
-                    $stale = $config->getInt('montzar_live_price', 0);
-                    $montzarLivePrice = $config->isPlausibleQuotePrice((float) $stale) ? $stale : 0;
-                }
+                $stale = $config->getInt('montzar_live_price', 0);
+                $montzarLivePrice = $config->isPlausibleQuotePrice((float) $stale) ? $stale : 0;
+                $montzarFlags = $config->montzarOpenFlags();
+                $montzar_open_buy = $montzarFlags['open_buy'];
+                $montzar_open_sell = $montzarFlags['open_sell'];
             }
         }
 
@@ -584,12 +584,9 @@ class ReportController extends Controller
 
                 $config->UpdateConfig('montzar_closed', 'false');
             } catch (\Throwable $e) {
-                $montzar = 0;
                 $config->applyMontzarSyncFailure();
-                if (!$config->getBool('montzar_closed', true)) {
-                    $stale = $config->getInt('montzar_live_price', 0);
-                    $montzar = $config->isPlausibleQuotePrice((float) $stale) ? $stale : 0;
-                }
+                $stale = $config->getInt('montzar_live_price', 0);
+                $montzar = $config->isPlausibleQuotePrice((float) $stale) ? $stale : 0;
                 \Log::error('STORE MONZAR PRICE ERROR', ['message' => $e->getMessage()]);
             }
         }
diff --git a/app/Services/ChatWebhookService.php b/app/Services/ChatWebhookService.php
index f4c34ef..694ad58 100644
--- a/app/Services/ChatWebhookService.php
+++ b/app/Services/ChatWebhookService.php
@@ -2,6 +2,7 @@
 
 namespace App\Services;
 
+use App\Http\Controllers\Controller;
 use App\Models\Setting;
 use Illuminate\Support\Facades\Http;
 use Illuminate\Support\Facades\Log;
@@ -65,6 +66,7 @@ class ChatWebhookService
         for ($i = 1; $i <= $attempts; $i++) {
             try {
                 $response = Http::timeout(8)
+                    ->withOptions(Controller::httpClientOptions([], 8.0))
                     ->retry(0)
                     ->post('https://'.$host.'/api/projects/set-webhook', [
                         'api_key' => $chatApiKey,
diff --git a/app/Services/LivePriceCacheService.php b/app/Services/LivePriceCacheService.php
index fad52bf..0a3bda4 100644
--- a/app/Services/LivePriceCacheService.php
+++ b/app/Services/LivePriceCacheService.php
@@ -35,6 +35,20 @@ class LivePriceCacheService
     {
         $cached = Cache::get(self::FULL_RESPONSE_KEY);
         $cachedBody = is_array($cached['body'] ?? null) ? $cached['body'] : null;
+        $config = app(ConfigService::class);
+
+        // no_quote صفر را روی مظنهٔ معتبر قبلی ننویس — قطع فید لحظه‌ای نباید UI را خالی کند
+        $incomingEmpty = ! $config->payloadHasDisplayablePrice($body)
+            && (string) ($body['status'] ?? '') === 'no_quote';
+        $existingGood = is_array($cachedBody) && $config->payloadHasDisplayablePrice($cachedBody);
+        if ($incomingEmpty && $existingGood) {
+            Cache::put(self::FULL_RESPONSE_KEY, [
+                'body' => $cachedBody,
+                'stored_at' => now(),
+            ], now()->addSeconds(self::TTL_SECONDS + 5));
+
+            return $cachedBody;
+        }
 
         if ($cachedBody !== null && PriceBroadcastService::lastPriceIdentity($cachedBody) === PriceBroadcastService::lastPriceIdentity($body)) {
             Cache::put(self::FULL_RESPONSE_KEY, [
@@ -95,7 +109,7 @@ class LivePriceCacheService
         return now()->diffInSeconds($lastTick) <= self::TICK_MAX_AGE_SECONDS;
     }
 
-    /** پاسخ سریع بدون API خارجی — فقط وقتی کران اخیراً tick زده (همان فرمول lastPrice) */
+    /** پاسخ سریع بدون API خارجی — از montzar_live_price / آخرین ردیف prices */
     public function buildFromDatabase(): array
     {
         $config = app(ConfigService::class);
@@ -104,6 +118,28 @@ class LivePriceCacheService
         $base = $last ? (float) $last->price : 0.0;
         $provider = $config->priceProvider();
 
+        $montzarSource = 0;
+        $zaarboxSource = 0;
+        $mainProductSource = 0;
+        $priceSource = 'database_last';
+
+        if ($provider === 'montzar') {
+            $liveMontzar = (float) $config->get('montzar_live_price', 0);
+            if ($liveMontzar > 0 && $config->isPlausibleQuotePrice($liveMontzar)) {
+                $base = $liveMontzar;
+                $montzarSource = (int) $liveMontzar;
+                $priceSource = 'montzar';
+            }
+        } elseif ($provider === 'zaarbox' && $base > 0) {
+            $zaarboxSource = (int) $base;
+            $priceSource = 'zaarbox';
+        } elseif ($provider === 'main_product' && $base > 0) {
+            $mainProductSource = (int) $base;
+            $priceSource = 'main_product';
+        }
+
+        // قبلاً فقط به جدول prices نگاه می‌کرد؛ اگر خالی بود SSE همان لحظه no_quote صفر
+        // می‌فرستاد و UI مظنهٔ معتبر HTTP را پاک می‌کرد — در حالی که montzar_live_price پر بود.
         if ($base <= 0) {
             $payload = [
                 'sell' => 0,
@@ -119,27 +155,6 @@ class LivePriceCacheService
                 'time' => now(),
             ];
         } else {
-            $montzarSource = 0;
-            $zaarboxSource = 0;
-            $mainProductSource = 0;
-            $priceSource = 'database_last';
-
-            if ($provider === 'montzar') {
-                $liveMontzar = (float) $config->get('montzar_live_price', 0);
-                if ($liveMontzar > 0 && $config->isPlausibleQuotePrice($liveMontzar)) {
-                    $base = $liveMontzar;
-                    $montzarSource = (int) $liveMontzar;
-                    $priceSource = 'montzar';
-                } else {
-                    $montzarSource = 0;
-                    $priceSource = 'database_last';
-                }
-            } elseif ($provider === 'zaarbox') {
-                $zaarboxSource = (int) $base;
-            } elseif ($provider === 'main_product') {
-                $mainProductSource = (int) $base;
-            }
-
             $trade = $config->buildTradeDisplayPrices($base, $priceSource);
 
             $payload = [
diff --git a/app/Services/MontzarService.php b/app/Services/MontzarService.php
index 2d3e3cd..2d563e1 100644
--- a/app/Services/MontzarService.php
+++ b/app/Services/MontzarService.php
@@ -31,11 +31,22 @@ class MontzarService
         return $this->baseUrl() . '/' . ltrim($path, '/');
     }
 
+    /** Pending HTTP با همان گزینه‌های پایدار (بدون پروکسی / IPv4 / HTTP1.1) */
+    private function http(float $timeout = 10)
+    {
+        $extraCurl = defined('CURLOPT_TCP_FASTOPEN')
+            ? [(int) constant('CURLOPT_TCP_FASTOPEN') => 1]
+            : [];
+
+        return Http::timeout($timeout)
+            ->acceptJson()
+            ->withOptions(Controller::httpClientOptions($extraCurl, $timeout));
+    }
+
     public function montzarLogin(): string
     {
         try {
-            $response = Http::timeout(10)
-                ->acceptJson()
+            $response = $this->http(10)
                 ->post($this->endpoint('/server/auth/login'), [
                     'mobile' => $this->config()->Config('montzar_mobile'),
                     'password' => $this->config()->Config('montzar_password'),
@@ -89,25 +100,57 @@ class MontzarService
     }
 
     public function productList(): array
+    {
+        $attempts = 3;
+        $lastError = null;
+
+        for ($attempt = 1; $attempt <= $attempts; $attempt++) {
+            try {
+                return $this->productListOnce();
+            } catch (\Throwable $e) {
+                $lastError = $e;
+                Log::warning('Montzar productList attempt failed', [
+                    'attempt' => $attempt,
+                    'max' => $attempts,
+                    'base_url' => $this->baseUrl(),
+                    'error' => $e->getMessage(),
+                ]);
+                if ($attempt < $attempts) {
+                    usleep(250_000 * $attempt);
+                }
+            }
+        }
+
+        throw $lastError ?? new \RuntimeException('Montzar product list failed');
+    }
+
+    private function productListOnce(): array
     {
         $token = $this->getToken();
 
-        $response = Http::timeout(7)
-            ->acceptJson()
-            ->withOptions(Controller::httpClientOptions(
-                defined('CURLOPT_TCP_FASTOPEN') ? [(int) constant('CURLOPT_TCP_FASTOPEN') => 1] : []
-            ))
-            ->withToken($token)
-            ->get($this->endpoint('/server/customer/product/list'))
-            ->json();
+        try {
+            $response = $this->http(7)
+                ->withToken($token)
+                ->get($this->endpoint('/server/customer/product/list'))
+                ->throw()
+                ->json();
+        } catch (\Throwable $e) {
+            // توکن مرده / قطع شبکه — یک بار لاگین مجدد
+            $token = $this->montzarLogin();
+            $response = $this->http(7)
+                ->withToken($token)
+                ->get($this->endpoint('/server/customer/product/list'))
+                ->throw()
+                ->json();
+        }
 
         if ((isset($response['message']) && $response['message'] === 'no authorised') || $response === null) {
             $token = $this->montzarLogin();
 
-            $response = Http::timeout(7)
-                ->acceptJson()
+            $response = $this->http(7)
                 ->withToken($token)
                 ->get($this->endpoint('/server/customer/product/list'))
+                ->throw()
                 ->json();
         }
 
@@ -263,9 +306,7 @@ class MontzarService
 
     private function sendColleagueLedgerHttp(string $method, string $url, string $token, ?array $payload)
     {
-        $pending = Http::timeout(30)
-            ->acceptJson()
-            ->withToken($token);
+        $pending = $this->http(30)->withToken($token);
 
         if (strtoupper($method) === 'GET') {
             return $pending->get($url, $payload ?? []);
@@ -368,8 +409,7 @@ class MontzarService
 
     private function postToMontzar(string $url, string $token, array $payload)
     {
-        return Http::timeout(15)
-            ->acceptJson()
+        return $this->http(15)
             ->withToken($token)
             ->post($url, $payload);
     }
diff --git a/app/Services/PriceBroadcastService.php b/app/Services/PriceBroadcastService.php
index 5820e09..524d0b8 100644
--- a/app/Services/PriceBroadcastService.php
+++ b/app/Services/PriceBroadcastService.php
@@ -98,6 +98,14 @@ class PriceBroadcastService
         $lastPayload = app(ConfigService::class)->applyHomePriceDisplayState($lastPayload);
         $lastPayload = app(ZaarboxPriceService::class)->attachGoldOunceToPayload($lastPayload);
 
+        // no_quote صفر را روی SSE پخش نکن — کلاینت مظنهٔ معتبر را پاک می‌کرد
+        // در حالی که /api/price/last هنوز قیمت داشت.
+        if (! app(ConfigService::class)->payloadHasDisplayablePrice($lastPayload)
+            && (string) ($lastPayload['status'] ?? '') === 'no_quote'
+        ) {
+            return;
+        }
+
         if (! $this->rememberHashIfChanged(self::LAST_HASH_KEY, self::lastPriceIdentity($lastPayload))) {
             return;
         }
diff --git a/app/Services/PriceChannelBroadcastService.php b/app/Services/PriceChannelBroadcastService.php
index ae360dd..357093e 100644
--- a/app/Services/PriceChannelBroadcastService.php
+++ b/app/Services/PriceChannelBroadcastService.php
@@ -775,7 +775,7 @@ TXT;
 
     private function sendBale(string $token, string $chatId, string $message): \Illuminate\Http\Client\Response
     {
-        return Http::withOptions(Controller::httpClientOptions())
+        return Http::withOptions(Controller::httpClientOptions([], 6.0))
             ->withoutVerifying()
             ->timeout(6)
             ->post("https://tapi.bale.ai/bot{$token}/sendMessage", [
@@ -787,7 +787,7 @@ TXT;
     private function sendTelegram(string $token, string $chatId, string $message): \Illuminate\Http\Client\Response
     {
         // تلگرام مستقیم از سرور اغلب فیلتر است — از پروکسی wwwapp استفاده می‌شود (مثل کد قدیمی)
-        return Http::withOptions(Controller::httpClientOptions())
+        return Http::withOptions(Controller::httpClientOptions([], 6.0))
             ->timeout(6)
             ->get('https://api.wwwapp.ir/telegran_send.php', [
                 'chatId' => $chatId,
@@ -798,7 +798,7 @@ TXT;
 
     private function sendRubika(string $token, string $chatId, string $message): \Illuminate\Http\Client\Response
     {
-        return Http::withOptions(Controller::httpClientOptions())
+        return Http::withOptions(Controller::httpClientOptions([], 6.0))
             ->withoutVerifying()
             ->timeout(6)
             ->post("https://botapi.rubika.ir/v3/{$token}/sendMessage", [
diff --git a/app/Services/ProductPriceSyncService.php b/app/Services/ProductPriceSyncService.php
index 113ee0b..7b9c016 100644
--- a/app/Services/ProductPriceSyncService.php
+++ b/app/Services/ProductPriceSyncService.php
@@ -2,6 +2,7 @@
 
 namespace App\Services;
 
+use App\Http\Controllers\Controller;
 use App\Models\Product;
 use Illuminate\Support\Collection;
 use Illuminate\Support\Facades\Cache;
@@ -179,7 +180,10 @@ class ProductPriceSyncService
 
         $CP = null;
         try {
-            $cooper = Http::timeout(8)->get('https://www.livedata.ir/main/static/p.json', [])->json();
+            $cooper = Http::timeout(8)
+                ->withOptions(Controller::httpClientOptions([], 8.0))
+                ->get('https://www.livedata.ir/main/static/p.json', [])
+                ->json();
             if (isset($cooper['s_301006'], $cooper['s_200103'])) {
                 $CP = (($cooper['s_301006'] / 1000000) * $cooper['s_200103']) * 10;
             }
@@ -238,6 +242,7 @@ class ProductPriceSyncService
 
         try {
             $RPrices = Http::timeout(8)
+                ->withOptions(Controller::httpClientOptions([], 8.0))
                 ->get('http://212.23.201.173:8381/price_list', [])
                 ->json();
         } catch (\Throwable $e) {
diff --git a/app/Services/SmsBilling/Providers/CentralSmsApiProvider.php b/app/Services/SmsBilling/Providers/CentralSmsApiProvider.php
index 8d6d1d9..d5b602c 100644
--- a/app/Services/SmsBilling/Providers/CentralSmsApiProvider.php
+++ b/app/Services/SmsBilling/Providers/CentralSmsApiProvider.php
@@ -26,12 +26,8 @@ class CentralSmsApiProvider implements SmsProviderInterface
             ->withHeaders([
                 'Content-Type' => 'application/json',
                 'secret_key' => 'f21debfb-83ac-4624-a2f4-f08375043181',
-            ]);
-
-        $curlOptions = Controller::httpClientOptions();
-        if ($curlOptions !== []) {
-            $http = $http->withOptions($curlOptions);
-        }
+            ])
+            ->withOptions(Controller::httpClientOptions([], 15.0));
 
         $host = trim((string) ($config['name_fa'] ?? ''));
         if ($host === '') {
diff --git a/app/Services/SmsBilling/Providers/MeliPayamakProvider.php b/app/Services/SmsBilling/Providers/MeliPayamakProvider.php
index 25ea9ad..8d4b413 100644
--- a/app/Services/SmsBilling/Providers/MeliPayamakProvider.php
+++ b/app/Services/SmsBilling/Providers/MeliPayamakProvider.php
@@ -29,7 +29,7 @@ class MeliPayamakProvider implements SmsProviderInterface
         ];
 
         $handle = curl_init('https://rest.payamak-panel.com/api/SendSMS/SendSMS');
-        curl_setopt_array($handle, [
+        $opts = [
             CURLOPT_HTTPHEADER => ['content-type: application/x-www-form-urlencoded'],
             CURLOPT_RETURNTRANSFER => true,
             CURLOPT_SSL_VERIFYHOST => false,
@@ -37,7 +37,16 @@ class MeliPayamakProvider implements SmsProviderInterface
             CURLOPT_POST => true,
             CURLOPT_POSTFIELDS => http_build_query($data),
             CURLOPT_TIMEOUT => 30,
-        ]);
+            CURLOPT_CONNECTTIMEOUT => 5,
+            CURLOPT_PROXY => '',
+        ];
+        if (defined('CURLOPT_IPRESOLVE') && defined('CURL_IPRESOLVE_V4')) {
+            $opts[CURLOPT_IPRESOLVE] = CURL_IPRESOLVE_V4;
+        }
+        if (defined('CURLOPT_HTTP_VERSION') && defined('CURL_HTTP_VERSION_1_1')) {
+            $opts[CURLOPT_HTTP_VERSION] = CURL_HTTP_VERSION_1_1;
+        }
+        curl_setopt_array($handle, $opts);
 
         $response = curl_exec($handle);
         $error = curl_error($handle);
diff --git a/app/Services/SmsBilling/SuperAdminSmsClient.php b/app/Services/SmsBilling/SuperAdminSmsClient.php
index f2a1a63..ed3c792 100644
--- a/app/Services/SmsBilling/SuperAdminSmsClient.php
+++ b/app/Services/SmsBilling/SuperAdminSmsClient.php
@@ -2,6 +2,7 @@
 
 namespace App\Services\SmsBilling;
 
+use App\Http\Controllers\Controller;
 use Illuminate\Http\Client\Response;
 use Illuminate\Support\Facades\Cache;
 use Illuminate\Support\Facades\Http;
@@ -204,7 +205,8 @@ class SuperAdminSmsClient
             try {
                 $pending = Http::withHeaders($this->authHeaders($method, $canonicalPath))
                     ->acceptJson()
-                    ->timeout($timeout);
+                    ->timeout($timeout)
+                    ->withOptions(Controller::httpClientOptions([], (float) $timeout));
 
                 $url = $this->urlForBase($base, $relativeUrl);
 
diff --git a/app/Services/WebsocketBroadcastService.php b/app/Services/WebsocketBroadcastService.php
index ccd7b81..95110bc 100644
--- a/app/Services/WebsocketBroadcastService.php
+++ b/app/Services/WebsocketBroadcastService.php
@@ -84,7 +84,7 @@ class WebsocketBroadcastService
         try {
             $response = Http::timeout(3)
                 ->withHeaders(['Content-Type' => 'application/json'])
-                ->withOptions(\App\Http\Controllers\Controller::httpClientOptions())
+                ->withOptions(\App\Http\Controllers\Controller::httpClientOptions([], 3.0))
                 ->post($url, $body);
 
             if (! $response->successful()) {
diff --git a/app/Services/ZaarboxPriceService.php b/app/Services/ZaarboxPriceService.php
index e7ef07f..9d470bf 100644
--- a/app/Services/ZaarboxPriceService.php
+++ b/app/Services/ZaarboxPriceService.php
@@ -2,6 +2,7 @@
 
 namespace App\Services;
 
+use App\Http\Controllers\Controller;
 use App\Models\Product;
 use App\Models\Setting;
 use Carbon\Carbon;
@@ -120,6 +121,7 @@ class ZaarboxPriceService
             try {
                 $prices = Http::withoutVerifying()
                     ->timeout(12)
+                    ->withOptions(Controller::httpClientOptions([], 12.0))
                     ->get($url)
                     ->json();
 
@@ -543,7 +545,11 @@ class ZaarboxPriceService
 
         try {
             if ($apiUrl !== null && trim($apiUrl) !== '') {
-                $prices = Http::withoutVerifying()->timeout(12)->get($apiUrl)->json();
+                $prices = Http::withoutVerifying()
+                    ->timeout(12)
+                    ->withOptions(Controller::httpClientOptions([], 12.0))
+                    ->get($apiUrl)
+                    ->json();
             } else {
                 $prices = $this->fetchFeedWithFailover();
             }
@@ -804,7 +810,10 @@ class ZaarboxPriceService
         $responses = Http::pool(function ($pool) use ($now) {
             foreach (self::PERIODS as $key => $config) {
                 $start = $now->copy()->subHours($config['hours']);
-                $pool->as($key)->withoutVerifying()->timeout(12)->withHeaders([
+                $pool->as($key)->withoutVerifying()
+                    ->timeout(12)
+                    ->withOptions(Controller::httpClientOptions([], 12.0))
+                    ->withHeaders([
                     'Referer' => 'https://tablo.montest.ir/',
                     'User-Agent' => 'Mozilla/5.0',
                 ])->get($this->historyUrl($start, $now));