Ok, I am at this point: I unzipped and set the wifi-stuff on every SD. (edited wpa_supplicant conf only with notepad++) They all connect to my Router and I was able, by setting the multitrigger conf IPs, to make them all connect and trigger together: once for a photo, once for a video. I wanted to download these first results for review and powered cameras off after that.
The multitrigger didn't work properly on a first attempt, but the second one was good - synched start and just 1 second(too late) on stopping the recording on some cameras (3/10)
When i tried to power them all up again and connect to wifi the long beep sound took a very long time to be heard on about half of the cameras. I was not able to reconnect multitrigger again. I also was not able to connect to the cameras via C&C using their IP.
The wifi signal is eccelent, i have them all right under my Router, tried of course powering router and pc on and off--- maybe some of the 10 have low battery, so i put them on charge now and will do this next:
1 - Boot em up again and see if connection works.
If yes - multitrigger testing (with 10 cams atm)
If no - set the IP static and reconnect them, see if that is the issue... may take a while because needs to be done by connecting every camera and i have only one pc.
Does the firmware version influence the behaviour with your "apps"?
I have no logfile from the test before, activated my router-logging now, (there where some STA expired 'though)