Hi Dan, Looking at the wireshark I see traffic to and from the ewon so this confirms the eWon can connect to the lan device. Looking at the backup itself i don’t see any thing set on the eWon that would be preventing it from access it. Where swapping in another device corrects it I am not sure what is going on here.
It might be a setting in the eWon I am over looking. I would suggest performing a factory reset and re-configuring it and see if the problem persists.
Deryck