@jstefanop: This can't be correct:
Yea internal error usually has to do with no network connection, so your wifi is probably not connecting. Make sure you connecting to 2.4GHz network instead of 5 for better range
Because one of the Miner ist always on LAN, an when i connect to LAN or Wifi IP Adress, there is always this "internal message error"
Gr€€tz Biosman
This is because both interfaces are left "on" by the linux system when you use both LAN and wifi... the Web UI does not know how to deal with that currently. You need to log into the system via a monitor, and turn off the interface you are not using (drop down on the upper right corner of the desktop).