ProSelect Network Server sleep issue (Macs)
Updated March 01, 2020
Running on OSX Sierra (10.12)
A user has reported an issue when running the ProSelect Network Server on Mac OSX Sierra (10.12).
It turns out that, in Sierra, the ProSelect Network Server is suspended from running when the server's display goes to sleep or the screensaver comes up. If any other computers running ProSelect try to send data to or get data from the server, such as when starting up or updating their settings, while the screensaver is up on the server computer, a "misc communications error code 16" or a failure to update template will occur. Waking up the display and trying again works.
To prevent this from happening, right-click on the ProSelect Network Server app and selecting Get Info. Then check "Prevent App Nap" checkbox. Quit the server and restart it again. This keeps the server app awake even if the machine's display is asleep.
Running on OSX 10.13 or newer
On these versions of OSX, the ProSelect Network Server can become suspended and unresponsive if your computer goes to sleep or your display Screen Saver starts up. You can disable both of these events in System Preferences:
Desktop and Screen Saver -> Screen Saver Tab -> Start After: Set to Never
Entergy Saver -> Power Adaptor Tab -> Turn Display Off After: Set to Never
AND check "Prevent computer from sleeping when the display is off"
ProSelect Network Server 2019r2
Alternatively, download ProSelect Network Server version 2019r2 from the Main Downloads page. This version automatically sets itself up not to go to sleep in the above circumstances.
KnowledgeBase Article: ProSelect Network Server sleep issue (Macs)