diff --git a/server/gameserver/roommgr.cc b/server/gameserver/roommgr.cc
index 07f0a27..a6fb3a1 100644
--- a/server/gameserver/roommgr.cc
+++ b/server/gameserver/roommgr.cc
@@ -166,6 +166,15 @@ void RoomMgr::_CMJoin(f8::MsgHdr& hdr, const cs::CMJoin& msg)
     hum->ProcPrepareItems2(msg.prepare_items2());
     room->AddPlayer(hum);
     PlayerMgr::Instance()->IncAccountNum(msg.account_id());
+    if (JsonDataMgr::Instance()->channel != 0 &&
+        JsonDataMgr::Instance()->channel != channel) {
+        a8::UdpLog::Instance()->Warning
+            ("join room channel not match channel:%d account_id:%s",
+             {
+              JsonDataMgr::Instance()->channel,
+              msg.account_id()
+             });
+    }
 }
 
 void RoomMgr::_CMReconnect(f8::MsgHdr& hdr, const cs::CMReconnect& msg)