I update my walldisplay XL to the latest beta firmware 2.6 and now homeassistant cannot connect anymore.
The error code from the walldisplay is;
[WebSocket]: WebSocket opened from 172.16.0.254: == GET /rpc ==
13:53:42
[RPC]: Digest auth successful
13:53:42
[RPC]: Digest auth successful
13:53:42
[RPC]: Digest auth successful
13:53:42
[RPC]: Digest auth successful
13:53:42
[RPC]: [WEBSOCKET:Script.GetCode] RPC Method failed, code -103, reason Invalid argument id!
13:53:42
[WebSocket]: WebSocket with 172.16.0.254 ended: null