Dear all,
I run HomeAssistant OS on an ODROID-N2+ and I recently decided to switch from using a HmIP-WLAN-HAP access point and the Homematic IP cloud integration to using a RF-USB-STICK, the RaspberryMatic Add-on and the Homematic IP local integration. The migration was, more or less, surprisingly painless . That said, I am having lots of problems with broken communication with my various Homematic IP actuators.
The communication problems occur, apparently, at random. I can’t pinpoint a specific factor that could be causing it: neither Carrier Sense nor Duty cycle ever exceeds 5%. The RF-USB-STICK is connected to one of the USB 3.0 ports of the ODROID N2+ with a USB 2.0 cable and sits about 1 m away from it. To make, potentially, matters worse, a second ODROID N2+ with active USB 3.0 ports lives next to the one running HomeAssistant. Interestingly, I also have a SkyConnect dongle and it never shows any connectivity issues.
I have read many, MANY, posts on German fori about similar issues, but I am still very much baffled. When I used the HmIP-WLAN-HAP access point I never had any connectivity issues. I would think that any interference should equally affect both the HmIP-WLAN-HAP and the RF-USB-STICK, shouldn’t it?
To make things even weirder, it is clear that the communication with my various HmIP devices is actually lost several hours before the ‘Communication disturbed’ messages appear in the RasberryMatic add-on. In addition, although usually the RasberryMatic add-on says that communication is disturbed for only 2-3 devices, communication is lost with all actuators.
The only way to solve the issue is to reboot the ODROID-N2+ =(-> restart the RF-USB-STICK), which is really not ideal. Restarting HomeAssistant, or the RasberryMatic add-on, is inconsequential. This could suggest that the problem comes from a buggy RF-USB-STICK firmware that crashes and shows up a disturbed communication. If not, the RasberryMatic add-on should be able to reconnect to the various HmIP devices, after the interference is gone, shouldn’t it?
Any help is very much welcome. Thank you!
Nicola