[MESH SDK] Provisioning slow and unstable

RE: [MESH SDK] Provisioning slow and unstable

Hung Bui — Mon, 09 Aug 2021 14:43:56 GMT

Hi Neicureruil,

I think a long pause you observed was when the crypto module is running and calculating the session key for provisioning. But 40s is way too long in my opinion.

Did you do any modification to the provisioner and the light switch example ?
Could you try testing with the 2 hex files I provided here. Just so we can rule out any hardware related issue.
In my test here it took less than 3 seconds to finish provisioning.

devzone.nordicsemi.com/.../provisioner_5F00_nrf52840_5F00_xxAA_5F00_s140_5F00_7.2.0.hex

devzone.nordicsemi.com/.../light_5F00_switch_5F00_client_5F00_nrf52840_5F00_xxAA_5F00_s140_5F00_7.2.0.hex devzone.nordicsemi.com/.../s140_5F00_nrf52_5F00_7.2.0_5F00_softdevice.hex

It's compiled with SDK v5.0

RE: [MESH SDK] Provisioning slow and unstable

neicureuil — Mon, 02 Aug 2021 08:37:46 GMT

Hi,

The provisioned devices used the light_switch server example. When I log them, there nothing weird all looks fine.

The issue never appear when I try to provision them from the nrf mesh android app but only when I try to provision them from the nrf52840 development board with the mesh sdk 5.0.0 (also test with mesh sdk 4.2.0).

The provisioning slow down and cause a long waiting time during the NRF_MESH_PROV_EVT_STATIC_REQUEST event.

Regards.

RE: [MESH SDK] Provisioning slow and unstable

tesc — Wed, 28 Jul 2021 08:29:55 GMT

Hi,

Are there other 2.4 GHz devices nearby? It could be interference from other devices. I assume that you include the 5/10 instances failing in the 8/10 count for "slow", that is, the 8/10 is "slow or failing" and only 2/10 succeed.

Do you have the log from the devices involved, for cases that are slow and/or failing?

Regards,
Terje