App broken with Mosquitto broker 7.0.0

### Govee Device SKU All ### Govee2MQTT Version 2026.03.25-ab9deb66 ### Describe the issue The latest version of Mosquitto broker for Home Assistant does not allow client ids containing the "/" character. The Mosquitto log fills up with lines stating: 2026-04-14 16:58:59: ACL denying access to client with dangerous client id "govee2mqtt/ae210f7bf2664b21a870812623d133a8" While govee2mqtt believe it's working, nothing can be controlled, and nothing updates. Reverting to the Mosquitto broker 6.5.2 restores service. ### Startup Diagnostics [2026-04-14T16:58:55 INFO govee::service::hass] Attempting connection to mqtt broker 192.168.1.220:1883... [2026-04-14T16:58:55 INFO govee::service::hass] Connected to mqtt broker 192.168.1.220:1883, status=CONNACK code 0: Connection Accepted. ### Additional Logs 2026-04-14 16:58:55: New connection from 192.168.1.220:36122 on port 1883. 2026-04-14 16:58:55: New client connected from 192.168.1.220:36122 as govee2mqtt/ae210f7bf2664b21a870812623d133a8 (p4, c1, k120, u'addons'). 2026-04-14 16:58:59: ACL denying access to client with dangerous client id "govee2mqtt/ae210f7bf2664b21a870812623d133a8" 2026-04-14 16:58:59: ACL denying access to client with dangerous client id "govee2mqtt/ae210f7bf2664b21a870812623d133a8" 2026-04-14 16:58:59: ACL denying access to client with dangerous client id "govee2mqtt/ae210f7bf2664b21a870812623d133a8" 2026-04-14 16:58:59: ACL denying access to client with dangerous client id "govee2mqtt/ae210f7bf2664b2

Posted by markjhealey on Apr 14, 2026, 4:18 PM

Tags

• reliability (SaaS)

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