diff --git a/server/robotserver/iomgr.cc b/server/robotserver/iomgr.cc
new file mode 100644
index 00000000..5f692e8f
--- /dev/null
+++ b/server/robotserver/iomgr.cc
@@ -0,0 +1,39 @@
+#include "precompile.h"
+
+#include "iomgr.h"
+
+static const int IC_Max = 4;
+
+void IoMgr::Init()
+{
+    for (int i = 0; i < IC_Max; ++i) {
+        io_contexts_.push_back(std::vector<std::shared_ptr<asio::io_context>>());
+        auto& contexts = io_contexts_.at(i);
+        contexts.push_back(std::make_shared<asio::io_context>());
+        new std::thread(&IoMgr::WorkerThreadProc, this, contexts.at(0));
+    }
+}
+
+void IoMgr::UnInit()
+{
+
+}
+
+std::shared_ptr<asio::io_context> IoMgr::GetIoContext(int type)
+{
+    if (type >= 0 && type < io_contexts_.size()) {
+        auto& contexts = io_contexts_.at(type);
+        if (!contexts.empty()) {
+            return contexts.at(rand() % contexts.size());
+        }
+    }
+    return nullptr;
+}
+
+void IoMgr::WorkerThreadProc(std::shared_ptr<asio::io_context> io_context)
+{
+    while (true) {
+        io_context->run();
+        io_context->reset();
+    }
+}
diff --git a/server/robotserver/iomgr.h b/server/robotserver/iomgr.h
new file mode 100644
index 00000000..1f6d55e8
--- /dev/null
+++ b/server/robotserver/iomgr.h
@@ -0,0 +1,26 @@
+#pragma once
+
+#include <a8/singleton.h>
+
+#include <asio.hpp>
+
+class IoMgr : public a8::Singleton<IoMgr>
+{
+private:
+    IoMgr() {};
+    friend class a8::Singleton<IoMgr>;
+
+public:
+
+    void Init();
+    void UnInit();
+
+    std::shared_ptr<asio::io_context> GetIoContext(int type);
+
+ private:
+    void WorkerThreadProc(std::shared_ptr<asio::io_context> io_context);
+
+ private:
+
+    std::vector<std::vector<std::shared_ptr<asio::io_context>>> io_contexts_;
+};
diff --git a/server/robotserver/playermgr.cc b/server/robotserver/playermgr.cc
index 030dfee4..aec972e1 100644
--- a/server/robotserver/playermgr.cc
+++ b/server/robotserver/playermgr.cc
@@ -1,5 +1,7 @@
 #include "precompile.h"
 
+#include <a8/websocketclient.h>
+
 #include <f8/udplog.h>
 #include <f8/utils.h>
 #include <f8/msgqueue.h>
@@ -9,6 +11,7 @@
 #include "playermgr.h"
 #include "player.h"
 #include "httpproxy.h"
+#include "iomgr.h"
 
 void PlayerMgr::Init()
 {
@@ -33,6 +36,12 @@ void PlayerMgr::Init()
                  abort();
              }
          });
+    auto web_socket = std::make_shared<a8::WebSocketClient>
+        (
+         *IoMgr::Instance()->GetIoContext(0),
+         "192.168.100.21",
+         7601
+         );
 }
 
 void PlayerMgr::UnInit()
diff --git a/third_party/a8 b/third_party/a8
index 7f568dcb..33a65a4c 160000
--- a/third_party/a8
+++ b/third_party/a8
@@ -1 +1 @@
-Subproject commit 7f568dcbd9a0134fd98b59e20768086c87cda483
+Subproject commit 33a65a4cf309412b9adcce44353293f06cd30010