Normal monitoring can be used via Exstreamer homepage or on the Status page (http://ipaddress/status), e.g.:

System status:
Ticks: 107843807 ms
Uptime: 1d 5h 57m 23s

Streaming status:
Volume: 90%
Shuffle: Off
Repeat: Off
Output peak level L: -12dBFS
Output peak level R: 0dBFS
Buffer level: 32764 bytes
RTP decoder latency: 0 ms; average 0 ms
Current stream number: 2
Current URL: http://stream.server.com:8500/listen_aac
Current song title: 
Current channel: 1
Stream bitrate: 48 kbps
Media format: AAC/AAC+
Last error: 1 - DNS Resolution Problem (Timestamp: 107843s)
Bytes played: 646977941
RTP frame loss counter: 0
RTP frame drop counter: 0
RTP frame dup counter: 0
Soft error counter: 0
Reconnects: 1

Here you get many information about current stream status and also last error displayed.

For extended monitoring the Barimon function can be used. Please go to http://www.barimon.net and click on the "create a new free demo project" link. In the Barimon-settings you have to set the MAC address of the Exstreamer. Now you are able to sent the status of the device to the Barimon-server. At the Exstreamer under "Advanced Settings - Remote Management" you have to set the Barimon URL to "http://www.barimon.net" and the "MTELL Report Periode" to 5 seconds.