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YaBh_4672321
Level 3
Level 3
25 replies posted 10 replies posted 10 sign-ins

Hi,

We have ported 43455 WICED SDK to NXP FRDM-K64 platform taking NXP's port for IMXRT1020 as a reference. Using LWIP as TCP/IP stack and running Amazon FreeRTOS.

Our use case is as follows:

- Device configures it self as an open AP on channel 1.

- Device starts a DHCP server.

- An Android or IOS mobile connects with the device AP.

- Data exchange takes place

- Device turns off the AP mode and moves to Station mode.

We are observing the following issue:

- After device is configured as open AP on channel 1, mobile tries to join the network. Network join is successful and mobile gets IP address from the Device.

- Mobile after a few seconds, drops the connection by itself and then reconnects with the AP. This loop goes on for ever.

- This issue is not reproduced on all mobile variants, Older phones (moto g series, Nokia 6.1 plus etc) seem to be having this issue but not phones like Samsung M31s or VIVO/Oppo/RealMe.

- On the mobile phones that do have this issue we tried forgetting all the known APs so that the Mobile does not disconnect because of availability of better network, but that did not fix the issue.

- The issue is not produced when working on Linux or windows system.

Is there any possible missing configuration on 43455 side or on Network stack side that might be causing this issue?

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Zhengbao_Zhang
Moderator
Moderator
Moderator
250 sign-ins First comment on KBA 10 questions asked

Hello

For the kind of disconnection issue on Android system we need logcat , Dmesg, and sniffer together,   thus we can have a judge what is the reason of the issue, thanks.

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