According to Google Play reviews for the MotoSync+ app, this issue is
due to server license expiring, after the host ended operations and
has been in play since at least May 12
A June 4th review says this:
The latest issue is "Server Licence Expired". I have been
unable to manage devices for months. So..I reset my router.
I no longer have a mesh network. I have only the single
point router and still unable to manage devices.
The licence verification issue continues. I found out this
is because a 3rd party managed the Server and folded.
3 weeks of almost daily Chat promises to connect to a
specialist which never materializes.
I left some chats open for hours.