Relay-net no errors but not working?

[snellejellep]

hi all,

i have a so called "eth008" 8 relay module, more info about the module on this website: https://www.antratek.nl/8-relaismodule-ethernet-eth008
It is working fine via the web interface of the device but i wanted to control it via Domoticz so i connected it with the hardware Relay-net.
it is detecting all the relays and inputs but i can not control them for some reason.
domoticz is according to the log connected to the relay module without any errors and when i flick a switch it is also shown in the log without any errors but my relays do not actuate.

anyone experience with this and/or suggestions for a solution?
if you need any more information, feel free to ask!