diff --git a/README.md b/README.md
index 89777056c..cd836db78 100755
--- a/README.md
+++ b/README.md
@@ -276,6 +276,7 @@ The ports used by SRS:
 
 ## V3 changes
 
+* v3.0, 2021-05-12, Fix [#2311][bug #2311], Copy the request for stat client. 3.0.162
 * <strong>v3.0, 2021-04-28, [3.0 release5(3.0.161)][r3.0r5] released. 122750 lines.</strong>
 * v3.0, 2021-04-28, Upgrade players. 3.0.161
 * <strong>v3.0, 2021-04-24, [3.0 release4(3.0.160)][r3.0r4] released. 122750 lines.</strong>
@@ -1912,6 +1913,7 @@ Winlin
 [bug #1987]: https://github.com/ossrs/srs/issues/1987
 [bug #1548]: https://github.com/ossrs/srs/issues/1548
 [bug #1694]: https://github.com/ossrs/srs/issues/1694
+[bug #2311]: https://github.com/ossrs/srs/issues/2311
 [bug #413]: https://github.com/ossrs/srs/issues/413
 [bug #2091]: https://github.com/ossrs/srs/issues/2091
 [bug #1342]: https://github.com/ossrs/srs/issues/1342
diff --git a/trunk/src/app/srs_app_http_stream.cpp b/trunk/src/app/srs_app_http_stream.cpp
index 5b32215ec..04a3f7a5a 100755
--- a/trunk/src/app/srs_app_http_stream.cpp
+++ b/trunk/src/app/srs_app_http_stream.cpp
@@ -76,7 +76,7 @@ SrsBufferCache::~SrsBufferCache()
     srs_freep(req);
 }
 
-srs_error_t SrsBufferCache::update(SrsSource* s, SrsRequest* r)
+srs_error_t SrsBufferCache::update_auth(SrsSource* s, SrsRequest* r)
 {
     srs_freep(req);
     req = r->copy();
@@ -527,7 +527,7 @@ SrsLiveStream::~SrsLiveStream()
     srs_freep(req);
 }
 
-srs_error_t SrsLiveStream::update(SrsSource* s, SrsRequest* r)
+srs_error_t SrsLiveStream::update_auth(SrsSource* s, SrsRequest* r)
 {
     source = s;
     
@@ -953,9 +953,10 @@ srs_error_t SrsHttpStreamServer::http_mount(SrsSource* s, SrsRequest* r)
         }
         srs_trace("http: mount flv stream for sid=%s, mount=%s", sid.c_str(), mount.c_str());
     } else {
+        // The entry exists, we reuse it and update the request of stream and cache.
         entry = sflvs[sid];
-        entry->stream->update(s, r);
-        entry->cache->update(s, r);
+        entry->stream->update_auth(s, r);
+        entry->cache->update_auth(s, r);
     }
     
     if (entry->stream) {
diff --git a/trunk/src/app/srs_app_http_stream.hpp b/trunk/src/app/srs_app_http_stream.hpp
index 1ba6c1e5a..82d62db39 100755
--- a/trunk/src/app/srs_app_http_stream.hpp
+++ b/trunk/src/app/srs_app_http_stream.hpp
@@ -46,7 +46,7 @@ private:
 public:
     SrsBufferCache(SrsSource* s, SrsRequest* r);
     virtual ~SrsBufferCache();
-    virtual srs_error_t update(SrsSource* s, SrsRequest* r);
+    virtual srs_error_t update_auth(SrsSource* s, SrsRequest* r);
 public:
     virtual srs_error_t start();
     virtual srs_error_t dump_cache(SrsConsumer* consumer, SrsRtmpJitterAlgorithm jitter);
@@ -189,7 +189,7 @@ private:
 public:
     SrsLiveStream(SrsSource* s, SrsRequest* r, SrsBufferCache* c);
     virtual ~SrsLiveStream();
-    virtual srs_error_t update(SrsSource* s, SrsRequest* r);
+    virtual srs_error_t update_auth(SrsSource* s, SrsRequest* r);
 public:
     virtual srs_error_t serve_http(ISrsHttpResponseWriter* w, ISrsHttpMessage* r);
 private:
diff --git a/trunk/src/app/srs_app_statistic.cpp b/trunk/src/app/srs_app_statistic.cpp
index e637e7199..4e58e9511 100644
--- a/trunk/src/app/srs_app_statistic.cpp
+++ b/trunk/src/app/srs_app_statistic.cpp
@@ -460,10 +460,14 @@ srs_error_t SrsStatistic::on_client(SrsContextId cid, SrsRequest* req, ISrsExpir
     
     // got client.
     client->conn = conn;
-    client->req = req;
     client->type = type;
     stream->nb_clients++;
     vhost->nb_clients++;
+
+    // The req might be freed, in such as SrsLiveStream::update, so we must copy it.
+    // @see https://github.com/ossrs/srs/issues/2311
+    srs_freep(client->req);
+    client->req = req->copy();
     
     return err;
 }
diff --git a/trunk/src/core/srs_core_version3.hpp b/trunk/src/core/srs_core_version3.hpp
index dce1ed4d0..de1a7a578 100644
--- a/trunk/src/core/srs_core_version3.hpp
+++ b/trunk/src/core/srs_core_version3.hpp
@@ -26,6 +26,6 @@
 
 #define VERSION_MAJOR       3
 #define VERSION_MINOR       0
-#define SRS_VERSION3_REVISION 161
+#define SRS_VERSION3_REVISION 162
 
 #endif