ESP32 proxy

[kujrv1]

My Bluethoot proxy is unable to connect with my wallbox in HA:
2024-03-06 13:55:19.218 ERROR (MainThread) [bleak_esphome.backend.client] esp32-bluetooth-proxy-abc4f4 [A8:42:E3:AB:C4:F4]: WB320588 - 4C:55:CC:1F:16:66: Pairing failed due to error: 102

[lostOzone]

Which Wallbox? Pulsar Plus? Copper SB? which firmware? 5.xx or 6.xx?
I tested this with Copper SB and firmware 5.xx I don't remember the exact version number. Maybe on version 6 they implemented security blocking the bluetooth to unknown users..
If I can I'll test this with the latest 6.4.20 firmware but I don't really remember where I stored the ESP32 I configured.
Il moved to MQTT as the ESP32 WIFI was really poor. And MQTT has way more controls and telemetry.

[kujrv1]

wallbox pulsar firmware 375

[lostOzone]

I have an old Pulsar with the same 375 firmware in a box as a backup. I'll report back after its yearly check.
This firmware is very old so there should not be any security measure restricting Bluetooth.