# BBO sends no readings to Boomerang

## Status

The BBO correctly detects all the sensors and interfaces, and its POST settings are correct, but no values are sent to the Boomerang system. The XML list for the gateway in B3 is empty.

##  Possible cause:

The reason can be an incorrect time in the gateway due to lack of access to an SNTP server. The gateway will not send any readings to the server if it does not have correct network time.

## How to check

Go to Network Time in System Configuration in BBO web interface.

<figure><img src="/files/4C3nN1LCoGzYLYjNAsjB" alt="" width="563"><figcaption></figcaption></figure>

The time displayed shall be the real UTC time. Remember that it will differ from your clock time by the number of hours defined by your time zone.&#x20;

The examples of the date and time shown in Advanced - Details screen in the BBO web interface is incorrect.

Two examples of this situation are shown below. In the first case the timestamp is completely wrong, in the second the value shown is 2002-01-01 when the real date is 2023-10-21:&#x20;

<figure><img src="/files/hkE3xvYc3OyoA4aWTtgx" alt="" width="563"><figcaption></figcaption></figure>

&#x20;![](/files/5pyD0Kv4ZMgbIxrfHV7Z)![](/files/zd5qaJbdKjeZ3wTqd1N9)

The Details xml file:

*This XML file does not appear to have any style information associated with it. The document tree is shown below.*

*\<Devices-Detail-Response xmlns="<http://www.icuscandinavia.com/schema/boomerang>" xmlns:xsi="[http://www.w3.org/2001/XMLSchema-instance">](http://www.w3.org/2001/XMLSchema-instance">)*

*\<PollCount>6041\</PollCount>*

*\<DevicesConnected>5\</DevicesConnected>*

*\<LoopTime>3.377\</LoopTime>*

*\<DevicesConnectedChannel1>3\</DevicesConnectedChannel1>*

*\<DevicesConnectedChannel2>1\</DevicesConnectedChannel2>*

*\<DevicesConnectedChannel3>1\</DevicesConnectedChannel3>*

*\<DataErrorsChannel1>0\</DataErrorsChannel1>*

*\<DataErrorsChannel2>0\</DataErrorsChannel2>*

*\<DataErrorsChannel3>0\</DataErrorsChannel3>*

*\<VoltageChannel1>4.51\</VoltageChannel1>*

*\<VoltageChannel2>4.51\</VoltageChannel2>*

*\<VoltageChannel3>4.52\</VoltageChannel3>*

*\<VoltagePower>4.74\</VoltagePower>*

*\<DeviceName>S1G2\</DeviceName>*

*\<HostName>S1G2-BBO1\</HostName>*

*\<MACAddress>68:27:19:32:BD:C1\</MACAddress>*

*\<FirmwareVersion>2.26\</FirmwareVersion>*

*\<DateTime>1970-01-\*- 0.:0\*:,.\</DateTime>*

## &#x20;How to correct

To correct it set a correct SNTP server URL or IP address as described in chapter [Network time](/bbo-gateway-installation-manual/bbo-web-interface/system-configuration/network-time.md).

Please note that access to an SNTP server may be blocked by the network settings at the installation site. In such a case help of the local network administrator is needed.

&#x20;


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