Unknown Access PDU Received

Problem

I am using vendor model in my node. I have subscribed vendor model with a group. When I send a read request to node then i can receive reply from node in callback. But when I try same with group address to fetch data of multiple nodes then I’m getting Unknown Access PDU Received message.

Steps to Reproduce

1. Provision multiple node having vendor model.
2. Subscribe all vendor model in same group
3. Send a read request using group address so that all node will reply

Expected behavior A message should be received in callback instead of Unknown Access PDU with group read requests also. Platform details:

• nRF Mesh Android Version (3.1.8)

Logs

V/MeshTransport: Src address: 01FC
V/MeshTransport: Dst address: CA7A
V/MeshTransport: Key: 8E42AC99126640AA9AEB03769C60AEA9
V/MeshTransport: akf: 1
V/MeshTransport: aid: 22
V/MeshTransport: aszmic: 0
V/MeshTransport: Sequence number: 896
V/MeshTransport: Access message opcode: 17
V/MeshTransport: Access message parameters: 
V/AccessLayer: Created Access PDU D7030C
V/UpperTransportLayer: Application nonce: 010000038001FCCA7A00000000
V/UpperTransportLayer: Encrypted upper transport pdu: 9A0AB20946A256
V/LowerTransportLayer: Unsegmented Lower transport access PDU 569A0AB20946A256
V/NetworkLayer: Encryption key: FBAEF6094DB3C91BD8B102C50431D325
V/NetworkLayer: Privacy key: 8BC445A7E9208068C40EEB8F449226C2
V/NetworkLayer: Sequence Number: 000380
V/NetworkLayer: Encrypted Network payload: 682A9472B121B18FAADA851F65C9
V/VendorModelMessageUnackedState: Sending acknowledged vendor model message
V/BleManager: Writing characteristic 00002add-0000-1000-8000-00805f9b34fb (WRITE COMMAND)
D/BleManager: gatt.writeCharacteristic(00002add-0000-1000-8000-00805f9b34fb)
I/BleManager: Data written to 00002add-0000-1000-8000-00805f9b34fb, value: (0x) 40-49-CF-B1-D2-36-5D-B5-68-2A-94-72-B1-21-B1-8F-AA-DA-85-1F
V/BleManager: Writing characteristic 00002add-0000-1000-8000-00805f9b34fb (WRITE COMMAND)
D/BleManager: gatt.writeCharacteristic(00002add-0000-1000-8000-00805f9b34fb)
I/BleManager: Data written to 00002add-0000-1000-8000-00805f9b34fb, value: (0x) C0-65-C9
I/BleManager: Notification received from 00002ade-0000-1000-8000-00805f9b34fb, value: (0x) 40-49-47-4B-6A-57-A8-07-76-3F-CC-EC-E5-C0-E2-87-2D-EF-F2-04
I/BleManager: Notification received from 00002ade-0000-1000-8000-00805f9b34fb, value: (0x) C0-57-83-47-48-FA-54-BF-47-21-72
V/MeshManagerApi: Received network pdu: 0x0049474B6A57A807763FCCECE5C0E2872DEFF20457834748FA54BF472172
V/BaseMeshMessageHandler: Sequence number of received Network PDU: 1524
V/NetworkLayer: TTL for received message: 20
V/NetworkLayer: Dst: 0x01FC
D/LowerTransportLayer: IV Index of received message: 0
D/LowerTransportLayer: SeqAuth: 1524
V/AccessLayer: Received Access PDU D8030C14500501011E0202
V/DefaultNoOperationMessageState: Unknown Access PDU Received: D8030C14500501011E0202

[hipal31]

@roshanrajaratnam Thank you for providing the information. We’ll find another way to archive our goal.

[roshanrajaratnam]

Happy to help!