Looks like there's a bad connection with the duex5 and not every pin gets connected. so the firmware does not load the duex5 part.
with the new cable it all worked for a few hours, but now i can't get it to work anymore.
connectors are fitted correctly and are propper in there sockets.

Good day everybody,

got a duet wifi with a duex5 for a IDEX setup,
got everything connected and first i don't see any duex5 when M115.
Got a new flat cable from Duet, (old one looked damaged) and after this i could see
the duex5 about 2 hours, now i again have the problem with the connection it seems.
Now i'm thinking that my duex has bad connections or my duet wifi.
Anyone who can help me, or had same issues?
I'm getting nuts here.