I have a similar problem on Sony KDL-55W905A:
hass[7851]: 2019-12-18 09:08:58 ERROR (SyncWorker_25) [braviarc.braviarc] [W] HTTPError: 401 Client Error: Unauthorized for url: http://tv6acfe2340cd2.home/sony/accessControl
The dialog box with PIN does not appear on TV. I would be happy to use braviatv_psk component, however my TV does not have pre-shared key option, namely there is no [Settings] → [Network] → [Home Network Setup] → [IP Control] → [Authentication] → [Normal and Pre-Shared Key] menu.
Any suggestion?