# FAQ [![View Source On Gitee](https://mindspore-website.obs.cn-north-4.myhuaweicloud.com/website-images/r2.0/resource/_static/logo_source_en.png)](https://gitee.com/mindspore/docs/blob/r2.0/docs/federated/docs/source_en/faq.md) **Q: If the cluster networking is unsuccessful, how to locate the cause?** A: Please check the server's network conditions, for example, check whether the firewall prohibits port access, please set the firewall to allow port access.