The push messages are sent over and over f. But the server has not received a ping from the client.
So the user does not receive it because the client is not connected to the server.
The logs show that SMP tries to resent it every 30 seconds.
O, 211, 23,1868, 08/23/2016 16:36:44, , 0, 0, ruijscht, >unknown<
T, 211, 23,1868, 08/23/2016 16:36:44, , 0, 0, ruijscht, >unknown<
F, 211, 23,1868, 08/23/2016 16:36:46, , 0, 0, ruijscht, >unknown<
T, 218, 23,1810, 08/23/2016 16:36:25, , 6, 0, ruijscht, >unknown<
W, 218, 23,1810, 08/23/2016 16:36:55, , 6, 0, ruijscht, >unknown<
T, 218, 23,1810, 08/23/2016 16:36:55, , 6, 0, ruijscht, >unknown<
W, 218, 23,1810, 08/23/2016 16:37:25, , 6, 0, ruijscht, >unknown<
I've tried to use the /SYCLO/CORE_OTRIG_RETRY_PROG but this does only gives more of these outbound messages.