IEC 62481-8:2017（E）规定了诊断指南。DLNA诊断指南主要关注通过测试操作和查询收集数据。故障排除和补救措施的程序不在DLNA指南的范围内。用户可以是通过TR-069（用于远程管理最终用户设备的应用层协议）管理界面访问诊断应用程序的操作员，也可以是通过浏览器或屏幕界面访问诊断应用程序的技术人员或最终用户，如图1所示。

IEC 62481-8:2017(E) specifies guidelines for Diagnostics. The DLNA Diagnostics guidelines focus mostly on the collection of data through test actions and queries. The procedures for troubleshooting and remedies are outside the scope of the DLNA guidelines. The user can be an operator accessing the Diagnostics Application through a TR-069 (an application layer protocol for remote management of end-user devices) management interface, or a technician or end-user accessing it through a browser or screen interface as shown in Figure 1.