diff --git a/server/SHServ/Tools/DeviceScanner.php b/server/SHServ/Tools/DeviceScanner.php
index ba08e83..acbebd6 100644
--- a/server/SHServ/Tools/DeviceScanner.php
+++ b/server/SHServ/Tools/DeviceScanner.php
@@ -130,14 +130,15 @@
       $url = "http://{$ip}:{$port}/about";
 
       $ch = curl_init();
+      $timeoutMs = (int) round($timeout * 1000);
       curl_setopt_array($ch, [
-        CURLOPT_URL            => $url,
-        CURLOPT_RETURNTRANSFER => true,
-        CURLOPT_CONNECTTIMEOUT => $timeout,
-        CURLOPT_TIMEOUT        => $timeout,
-        CURLOPT_FOLLOWLOCATION => false,
-        CURLOPT_NOBODY         => false,
-        CURLOPT_HEADER         => false,
+        CURLOPT_URL               => $url,
+        CURLOPT_RETURNTRANSFER    => true,
+        CURLOPT_CONNECTTIMEOUT_MS => $timeoutMs,
+        CURLOPT_TIMEOUT_MS        => $timeoutMs,
+        CURLOPT_FOLLOWLOCATION    => false,
+        CURLOPT_NOBODY            => false,
+        CURLOPT_HEADER            => false,
       ]);
 
       curl_multi_add_handle($multi, $ch);