some channels stop descrambling

Hello there,
Setup: i5-3550-8Gig mem + ubuntu 14.04 + tbs 6909 oscam-latest + mumudvb(latest) (8 instances, one for every tuner) + quad lnb on 23,5E (only dutch channels)
Spread over the 8 tuners there are 76 channels (via oscam) up and running and 2 FTA channels. there is only 1 client, a iptv server, so i use unicast for transport to this local iptv server. avarage data use = +/- 320 Mbit/s.
The problem is that every morning around 2 or 3 channels have stopped working. There are no error's in the log concerning those channels, and only restart of mumudvb solves the problem.
I there a script for checking and restarting the particular mumudvb instance? or is there maybe another solution by one of you experts ??
thanks in advance
config card-0 :
card=0
multicast=0
multicast_ipv4=0
multicast_ipv6=0
unicast=1
port_http=12310
delivery_system=DVBS2
freq=11739
modulation=8PSK
pol=v
srate=29900
coderate=2/3
scam_support=1
autoconfiguration=full
autoconf_sid_list_ignore=6112 6113 6095 6151 6036
Setup: i5-3550-8Gig mem + ubuntu 14.04 + tbs 6909 oscam-latest + mumudvb(latest) (8 instances, one for every tuner) + quad lnb on 23,5E (only dutch channels)
Spread over the 8 tuners there are 76 channels (via oscam) up and running and 2 FTA channels. there is only 1 client, a iptv server, so i use unicast for transport to this local iptv server. avarage data use = +/- 320 Mbit/s.
The problem is that every morning around 2 or 3 channels have stopped working. There are no error's in the log concerning those channels, and only restart of mumudvb solves the problem.
I there a script for checking and restarting the particular mumudvb instance? or is there maybe another solution by one of you experts ??

thanks in advance
config card-0 :
card=0
multicast=0
multicast_ipv4=0
multicast_ipv6=0
unicast=1
port_http=12310
delivery_system=DVBS2
freq=11739
modulation=8PSK
pol=v
srate=29900
coderate=2/3
scam_support=1
autoconfiguration=full
autoconf_sid_list_ignore=6112 6113 6095 6151 6036