Johan,

On Sun, 2017-09-24 at 19:48 +0300, Johan Hedberg wrote:

Hi Steve,

On Sun, Sep 24, 2017, Steve Brown wrote:

===================================================================
======================
[bt] [ERR] prov_start: Invalid authentication method: 0x02; action:
0x00; size: 0x04
===================================================================
======================

At least some versions of the SiLabs app had a bug with OOB handling
that was causing similar results as above. A simple solution was to
disable OOB provisioning support from the Zephyr side, i.e. set all
output* members to zero in struct bt_mesh_prov in main.c. That said,
I'm
not sure if the issue you're seeing is the same.

[bt] [ERR] hci_acl_handle: Invalid Tx Enqueue
[bt] [ERR] send_frag: Unable to send to driver (err -22)

This is something coming from the controller code that I haven't seen
before. Maybe the controller maintainers from Nordic have some idea.

Johan

That was it!

I disabled OOB and it's working.

The Invalid Tx Enqueue error is gone too.  

Thanks,

Steve