---
page_type: error
code: 52072
message: "52072: Client mqtt connection not created or closed"
level: WARNING
product: Notifications
---

## Warning - 52072

### RtdNotification: Mqtt client connection not created or closed

#### Possible Causes

- Most probably mqtt client had disconnected but registration didn't removed yet.

#### Possible Solutions

- Check this warning happens only once for certain registration id.