diff --git a/internal/logic/server/getServerConfigLogic.go b/internal/logic/server/getServerConfigLogic.go
index 2b7ea3bf..85b74d84 100644
--- a/internal/logic/server/getServerConfigLogic.go
+++ b/internal/logic/server/getServerConfigLogic.go
@@ -69,12 +69,16 @@ func (l *GetServerConfigLogic) GetServerConfig(req *types.GetServerConfigRequest
 	}
 	var cfg map[string]interface{}
 	for _, protocol := range protocols {
-		if protocol.Type == protocolRequest {
+		if protocol.Enable && protocol.Type == protocolRequest {
 			cfg = l.compatible(protocol)
 			break
 		}
 	}
 
+	if cfg == nil {
+		return nil, fmt.Errorf("protocol %s not found or disabled", req.Protocol)
+	}
+
 	resp = &types.GetServerConfigResponse{
 		Basic: types.ServerBasic{
 			PullInterval: l.svcCtx.Config.Node.NodePullInterval,
diff --git a/internal/logic/server/queryServerProtocolConfigLogic.go b/internal/logic/server/queryServerProtocolConfigLogic.go
index 4521c556..198d8246 100644
--- a/internal/logic/server/queryServerProtocolConfigLogic.go
+++ b/internal/logic/server/queryServerProtocolConfigLogic.go
@@ -41,6 +41,15 @@ func (l *QueryServerProtocolConfigLogic) QueryServerProtocolConfig(req *types.Qu
 	}
 	tool.DeepCopy(&protocols, dst)
 
+	// only return enabled protocols for node distribution
+	var enabledProtocols []types.Protocol
+	for _, p := range protocols {
+		if p.Enable {
+			enabledProtocols = append(enabledProtocols, p)
+		}
+	}
+	protocols = enabledProtocols
+
 	// filter by req.Protocols
 
 	if len(req.Protocols) > 0 {
diff --git a/internal/model/node/model.go b/internal/model/node/model.go
index ddfa736d..ccad51df 100644
--- a/internal/model/node/model.go
+++ b/internal/model/node/model.go
@@ -128,7 +128,7 @@ func (m *customServerModel) ClearNodeCache(ctx context.Context, params *FilterNo
 					return err
 				}
 				if len(keys) > 0 {
-					cacheKeys = append(keys, keys...)
+					cacheKeys = append(cacheKeys, keys...)
 				}
 				cursor = newCursor
 				if cursor == 0 {