noip freezes my 6.0

Hello,

pkg_add ...pub/OpenBSD/6.0/packages/amd64/no-ip-2.1.9p4.tgz
enable it with rcctl

.. ok, it works! heading for a sleep.

but in the morning: the OpenBSD router was not responding.

ok, omg, power off/on. don't know what happened, nothing in the logs.

ok, next day, the same, during the night, the machine freezes. now I turn the noip off with rcctl and not running the noip client.

.. the machine didn't freezed.

How can I help the community, how to debug this problem? (before opening a low-level bugreport, want to make it a more quality report)

Many thanks.