Tvheadend

Hi guys.

I'm new to TVH, I have used astra / cesbo before. Now found out about TVH and thought to give it a try and I quiet like it, with all the functionality.
But before I can even start using it, got in to few problems.

I installed it on a supermicro server with 8 tuners, 4 cards, each with 2 tuner / ports, german digitaldevices.

ubuntu server 64bit, 14.4.4 edition clean install.

tvh via the original reps.

my situation :

I have multiple diseq swithces with 8ports input 16 port output to the tuners. so it's 4 imputs from one dish / universal lnb + 4 imputs from second disch / universal lnb.

from the multiswitch I have 2 outputs, 1 is 8x times to the next swithc, 2 16x outputs to tuner cards / server

in this case I have done next things :

after clean install and reboot.

I added a dvb-s network, Astra 28. then selected orbital position 28.2 Astra, Network diskovery and Skip initial scan.

I enabled first tuner in TVH, then selected to SatConfig "4port switch" because if I select any other config, i'm unable to scan, i get directly difrent types of errors.
somehow only in this mode I'm able to scan and find channels. (have just retested, universal lnb only works also)

then I went in a sublevel on tuner itself and I get to set AA, AB, BA, BB.
In AA I selected the Network Astra, that I created before. and saved.

then after that I went to mux, found one from kingofsat and added there. services were found fine, and I mapped them.

All channels working fine.

sofar so good.

So now, when I watch from 1 instance of VLC it works, as soon as I start second, it does not work, and it writes in the log that there no free adapters.

So first question, How do I solve this ? do I need to enable more adapters and set it to same network? if yes, how do I set it ? must I put it to aa, ba, ab, or bb ?
casue I was not able to find any info about those 4 selections aa, ab, etc...

Just for testing I have enabled 4-5 adapters, and set on each adapter 1 field, like, first adapter AA, then second AB, third Ba, forth BB, to the networks, as soon as I pass 3d adaptor,
the whole TVH freezes, requestion video takes like a minute, and menus are frozen, if I clicn anywhere I need to wait 30 secons, a minute. if I add more adapters this way, it becomes almost unrisposnive.

as soon as I disable them, and leave 1-2 adapters active everything works fine again.

and third question, is I think a simple one, does anybody have a 100% working howto step by step of installing TVH with transcoding. cause in my install I only have motroska, pass and hts...
I had found few via google but non of them worked, at some point there are errors etc... or they are only the older versions.

please guys, any advise is much much aprisciated.

thank you in advance.