diff --git a/cache/src/tango_cache_transfer.cpp b/cache/src/tango_cache_transfer.cpp
index f744f25..4b8b890 100644
--- a/cache/src/tango_cache_transfer.cpp
+++ b/cache/src/tango_cache_transfer.cpp
@@ -21,7 +21,7 @@ static inline void curl_set_common_options(CURL *curl, long transfer_timeout, ch
 	curl_easy_setopt(curl, CURLOPT_CONNECTTIMEOUT_MS, 500L); 
 	curl_easy_setopt(curl, CURLOPT_TIMEOUT, transfer_timeout); //测试发现多链接有某链接接收卡住的情况
 	//ctx->error="Operation too slow. Less than 1024 bytes/sec transferred the last 3 seconds"
-	curl_easy_setopt(curl, CURLOPT_LOW_SPEED_TIME, 2L);
+	curl_easy_setopt(curl, CURLOPT_LOW_SPEED_TIME, 5L);
 	curl_easy_setopt(curl, CURLOPT_LOW_SPEED_LIMIT, 100L);
 	curl_easy_setopt(curl, CURLOPT_USERAGENT, "aws-sdk-cpp/1.5.24 Linux/3.10.0-327.el7.x86_64 x86_64 pangu_cache");
 }