Can't make statsd populated with data from private instance

I’ve enabled the following in settings.ini
statsdHost=statsd.domain.com ; domain.com is fake domain name. real name is reachable by ping at least from my private instance of WPT
statsdPort=8125
statsdPrefix=webpagetest

But I don’t see any records on UI(graphite) in statsd from WPT.

Whats wrong here?

Found it under: stats.gauges.