HomeMatic-IP devices not found with the HmIP-RFUSB stick

Hardware
1

Little explanation first: I have a RaspberryPi4 with Home Assistant and HomeMatic(IP) local connected to a CCU2 with over 50 devices coupled, both HomeMatic and HomeMaticIP. The CCU2 is acting up lately so I decided to switch to the HmIP-RFUSB stick. With the help of this youtube video, thanks Simon42, I was able to install and setup the HomeMatic devices. However I can’t connect the HomeMaticIP devices to the stick.
First I delete the device from the CCU2 (as stated in the video), then I start the Teach-in HmIP in the RaspberryMatic integration but nothing. Even a hard reset of the device doesn’t help.
However when I go back to the CCU2 and do the same Teack-in procedure the device is found without any problems.

What am I doing wrong?

2

Can you see the RFUSB device in the raspberrymatic addon?

3

Yes I can. And it’s active as well, as said the Hm devices are connecting without any problems, it’s the HmIP devices that don’t want to connect.

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4

I do not know if it can be a RaspBerryMatic problem, since I use Debmatic instead, but I have only HmIP devices and I have found that they should be pretty close to the RFUSB device in order to pair correct.

5

Thanks for the reply.
I’m currently in contact with ELV to see whether they have a solution.