hi,
i've purchase and activated the pro version 4 lines,
-i've activated and it shows in line status correctly at first,
-however the service is not running well after 1 hour, in the line status it is still shows waiting for call, ( i've check my pbx and it shows client disconnected.)
-after the manual stop and start service, it works as normal again
-sometime the line status shows my license as evaluation copy randomly when the service stop and restart manually.
attached wireshark captured for the 1 hour.

please help
20180102-vg.zip