My Book Live Duo needs a reset every 3 days to be accessed remote


I have MBL Duo and every 3 days I need to reset the device in order to get it to work remotely. It works fine in lan, the problem is only with the remote access out of home. Any ideas what I am doing wrong?


Hello, check for any firmware updates. 

I have the last update and all configuration according to the instruction, so I do not think that is the problem.