Shelly Plus 2PM not found by Home Assistant

I have a new Shelly Plus 2PM configured as a cover in the Shelly app. Home Assistant is not able to automatically find the device in my network (7 other devices work fine). I have tried adding it manually by IP in my configuration.yaml, but that doesn’t help. In the HA log I see this warning:

Logger: pyShelly
Source: /usr/local/lib/python3.10/site-packages/pyShelly/
First occurred: 16:47:10 (8 occurrences)
Last logged: 17:54:18

Error, 404 Not Found http://*shelly IP*/status

When I go to the webpage of the device and monitor the debug log, I see the following messages come by when I restart HA:

mgos_http_server.c:180 0x3ffdc7bc HTTP connection from *HA IP*:57440

Anyone has an idea what I can do to make it work?