@ryanlo assuming you're using tcp/ip, check that you can actually ping the unit from your mango box.
Second, confirm of the unit has a zero or one offset for the registers.
Mango is zero by default, you may need to increment your register addresses by one.

Fox

@ryanlo In addition to what @MattFox is saying you should also see an Event / Alarm in the UI to correspond to the event being detected. The handler should be linked to that event and as Matt said, if you setup logging correctly you will also see it in the logs.

@ryanlo To answer your initial question, the default login is still admin : admin. The easiest way to do a reset would be to stop Mango, move the database (move it to root ~/) from the /opt/mango/databases/ directory (from directory use, mv mah2.200.* ~/ command), then restart Mango. Similar direction could be found on our document site, you will not need to do the restore since this is a new unit. Thank you!