中文
含义
错误码ERR 4表示网络连接故障。该代码表示声吧无法连接到WiFi网络或与索尼云服务建立通信，可能导致流媒体音乐服务（如Spotify Connect、Apple AirPlay）、多房间音频同步和固件自动更新功能不可用。
常见原因
- 路由器SSID广播关闭或WiFi网络设置为隐藏网络
- WiFi密码输入错误，保存了错误的凭证
- 声吧距离路由器过远，2.4GHz信号衰减导致连接不稳定
- 路由器开启了MAC地址过滤，声吧的MAC未在白名单中
- 路由器信道设置与声吧WiFi模块支持的频段不匹配（如使用了DFS信道）
自助排查
- 在声吧设置中删除已保存的WiFi网络，重新扫描并输入密码
- 将声吧移近路由器（5米以内）测试，排除信号覆盖问题
- 重启路由器后待完全启动再进行声吧网络连接
- 尝试使用索尼Music Center App重新配置网络连接，而非声吧面板操作
English
Meaning
Error code ERR 4 indicates a network connection failure. This code indicates that the soundbar cannot connect to a WiFi network or establish communication with Sony cloud services, which may affect streaming music services (such as Spotify Connect, Apple AirPlay), multi-room audio sync, and automatic firmware updates.
Common Causes
- Router SSID broadcast disabled or WiFi network set to hidden
- Incorrect WiFi password saved on the soundbar
- Soundbar too far from the router, 2.4GHz signal degradation causing unstable connection
- Router MAC address filtering enabled, soundbar’s MAC not whitelisted
- Router channel setting incompatible with the soundbar’s WiFi module band support (e.g. DFS channels)
Self-Check Steps
- Delete the saved WiFi network in soundbar settings, rescan, and re-enter the password
- Move the soundbar closer to the router (within 5 meters) to rule out signal coverage issues
- Restart the router and wait for it to fully boot before reconnecting the soundbar
- Try using the Sony Music Center app to reconfigure the network connection rather than the soundbar panel controls