Join period with module Wio-E5 mini - LoRaWAN

Hello community, I am using the Wio-E5 mini and I have a question regarding the storage time of the server parameters, I mean when I join with the server well everything is correct and I use the low consumption AT command, how long can it remain in this way until I try to send and have to join the server again, what would be the period between joins for the module? Of course, it only has to remain in low consumption since with a reset or shutdown, I know that these settings are lost.
Thank you very much, I am attentive to any information.