diff --git a/client/rwc/websocket/fasthttp/client_rwc_handlers.go b/client/rwc/websocket/fasthttp/client_rwc_handlers.go
index 67eb54d..ae7bc56 100644
--- a/client/rwc/websocket/fasthttp/client_rwc_handlers.go
+++ b/client/rwc/websocket/fasthttp/client_rwc_handlers.go
@@ -32,10 +32,10 @@ func (crwch *ClientReadWriteCloseHandlers) ReadResponse(clientCTX client.ClientC
 
 	_, buf, err := soc.ReadMessage()
 	if nil != err {
-		if websocket.IsUnexpectedCloseError(err) {
-			return nil, io.EOF
+		if !websocket.IsUnexpectedCloseError(err) {
+			logging.Logger().Errorf("RPC: %v", err)
 		}
-		return nil, err
+		return nil, io.EOF
 	}
 
 	return codec.NewResponse(buf)
@@ -56,9 +56,9 @@ func (crwch *ClientReadWriteCloseHandlers) WriteRequest(clientCTX client.ClientC
 	wErr = soc.WriteMessage(websocket.TextMessage, buf)
 	if nil != wErr {
 		if websocket.IsUnexpectedCloseError(wErr) {
-			return io.EOF
+			logging.Logger().Errorf("RPC: %v", wErr)
 		}
-		return wErr
+		return io.EOF
 	}
 
 	return nil
diff --git a/server/rwc/websocket/fasthttp/servlet_rwc_handlers.go b/server/rwc/websocket/fasthttp/servlet_rwc_handlers.go
index ad9099a..769e1f6 100644
--- a/server/rwc/websocket/fasthttp/servlet_rwc_handlers.go
+++ b/server/rwc/websocket/fasthttp/servlet_rwc_handlers.go
@@ -3,6 +3,7 @@ package fasthttp
 import (
 	"io"
 
+	"git.loafle.net/commons_go/logging"
 	"git.loafle.net/commons_go/rpc"
 	"git.loafle.net/commons_go/rpc/protocol"
 	cwf "git.loafle.net/commons_go/websocket_fasthttp"
@@ -23,9 +24,9 @@ func (srwch *ServletReadWriteCloseHandlers) ReadRequest(servletCTX rpc.ServletCo
 	_, buf, err := soc.ReadMessage()
 	if nil != err {
 		if websocket.IsUnexpectedCloseError(err) {
-			return nil, io.EOF
+			logging.Logger().Errorf("RPC: %v", err)
 		}
-		return nil, err
+		return nil, io.EOF
 	}
 
 	return codec.NewRequest(buf)
@@ -54,9 +55,9 @@ func (srwch *ServletReadWriteCloseHandlers) WriteResponse(servletCTX rpc.Servlet
 	wErr = soc.WriteMessage(websocket.TextMessage, buf)
 	if nil != wErr {
 		if websocket.IsUnexpectedCloseError(wErr) {
-			return io.EOF
+			logging.Logger().Errorf("RPC: %v", wErr)
 		}
-		return wErr
+		return io.EOF
 	}
 
 	return nil
@@ -77,9 +78,9 @@ func (srwch *ServletReadWriteCloseHandlers) WriteNotification(servletCTX rpc.Ser
 	wErr = soc.WriteMessage(websocket.TextMessage, buf)
 	if nil != wErr {
 		if websocket.IsUnexpectedCloseError(wErr) {
-			return io.EOF
+			logging.Logger().Errorf("RPC: %v", wErr)
 		}
-		return wErr
+		return io.EOF
 	}
 
 	return nil