Multiple nodes acknowledgement problem

[Anaya]

Getting acknowledgement only from single node which is 1st connected

[Hung Bui]

Hi Madhav, 
We are still investigating the issue. But it's most likely due to interference. 

The main difference between the iOS app and the Android app is that the iOS app re-transmit the packets if it doesn't receive a response. 

Our suggestion for now is to do the same on your Android app (to retry sending message after a few seconds timeout) 

[Anaya]

Hello Sir,

I have checked in iOS app, the retry command goes from the NRF mesh library itself, but in android application it is not implemented.

I want to solve this issue in android application, then where we should implement retry logic, in NRF mesh library for android or in example app?

Please guide us.

[Hung Bui]

Please modify the Android app to send the retry logic. So instead of having a long timeout and wait for the ACK message. You should have shorter timeout (1/3 of the original) and when it timed out, you send a new message. And after 3 times you then can throw the actual timeout to the GUI interface. 

[Anaya]

Hello,

As per your suggestion I tried the retry logic, but it didn't work as expected.

Please suggest some solution.

Thank you.

Regards!

[Hung Bui]

What exactly didn't work ? please describe.
You mentioned before the issue only happens once in 10 times, so with a few retries, it should only happen once in 1000 times or more.