After alarm no connection anymore

I have an powermax pro connected with a FTDI interface to my Vera lite, app version 1.2a.
The first problem i have is that i cant get it in powerlink modus only in standard.
I tried many things and read here a lot but cant solve that problem.
But all my powermax devices are found and work normal, i also can arm/disarm the alarm and read the log from the visonic so the communication is ok i think.
But what i found a greater problem and i dont know if this has something to do with powerlink/standard mode is this:
When i arm my alarm and i have an intruder alarm then after i disable my alarm with for example my keyfob i dont have anymore communication between the powermax and the Vera.
To solve this problem i have to log into my vera and reload luup in the serial port configuration.
The Vera has latest UI7 1.7.439 firmware

The fact that you’re not able to use Powerlink mode already indicates there is something fishy going on. If you have a problem, make sure debugging is on, collect the LuaUPnP.log and send it to vera.powermax at gmail.com.