kaiyung Sorry for the trouble you have, could you refer to this to submit a bug report as well? we will analyze the log.
kaiyung The new unit I received was a customer returned one with messed up configuration.
For this, All products we sell are brand new, and won't have this situation, may I know what configuration problem you have and the purchasing details? please submit a ticket here and our after-sales team will direct handle this for you. thanks.
https://support.zwoastro.com/