2 of 8 Devices are not correctly recognized

[nhondong]

Hi,
I have same 8 Devices (type Hysen Heating Controller).
6 of them are correctly recognized, but 2 are not recognized as Hysen Heating Controller.
I looked up the __init.py script and put some logging in.
the procedure gendevice(devtype...) returns the correct type.

Here is the log:

found: 192.168.150.203 8fd27534ea34
PID child 15942
Hysen heating controller
set time 11:39:23 1
found: 192.168.150.136 5ce07534ea34
PID child 15944
Hysen heating controller
set time 11:39:25 1
found: 192.168.150.206 6fd27534ea34
PID child 15946
Hysen heating controller
set time 11:39:26 1
found: 192.168.150.202 b1c77534ea34
PID child 15997
found: 192.168.150.205 a0d27534ea34
PID child 15999
found: 192.168.150.207 b9d27534ea34
PID child 16001
Hysen heating controller
set time 11:39:33 1
found: 192.168.150.204 f4df7534ea34
PID child 16003
Hysen heating controller
set time 11:39:35 1
found: 192.168.150.201 03e77534ea34
PID child 16005
Hysen heating controller
set time 11:39:37 1
`
Any Ideas why these 2 devices are not correctly recognized?

Kind regards, Nils