52840+7002ek udp demo problem

[William.wei]

hi support team,

our ncs2.6.0 demo /samples/net/udp is supporting 7002dk, the demo works for 7002dk.

however it doesn't support 52840dk with 7002ek shield,i have modified demo according to 7002dk（copy nrf7002dk_nrf5340_cpuapp_ns.conf to  nrf52840dk_nrf52840.conf）

the build process is ok and it runs normal, but findout device can't attached to router.

below is difference bwtween 52840dk and 7002dk:

the attached are the logs for 52840dk with 7002ek shield and 7002dk:

52840dk_7002ek.txt

7002dk_nrf5340_cpuapp_ns.txt

and here is the code:

udp.zip

please help to see what's the problem. really appreciated.

Regards,

William.

[Marte Myrvold]

Hi William,

Based on the logs, the nRF52840 DK does not receive the AP's third message (EAPOL-Key 3) in the 4-way handshake. Instead, the AP resends the first message (EAPOL-Key 1). It could be that the Message Integrity Check (MIC) value that the nRF52840 DK sends in EAPOL-Key 2 is incorrect, causing the AP to restart the handshake. I do not see why this should be an issue only with the nRF52840 DK, but I will look into it and get back to you.

Best regards,
Marte

[Marte Myrvold]

Hi William,

I did some tests on my side and I was able to reproduce the issue when the network password was incorrect. Can you please verify that CONFIG_WIFI_CREDENTIALS_STATIC_PASSWORD is correct?

When the password was correct, I could successfully connect to the network with the nRF52840 DK just as with the nRF7002 DK.

Best regards,
Marte

[William.wei]

Hi Marte,

it confuse me as i can run it correctly when building as 7002dk, however the same project is not working when building as 52840dk+7002ek.

i am quite sure the password is correct and i can see them same in those two logs.

however, i tried different routers:

CONFIG_WIFI_CREDENTIALS_STATIC_SSID="Nordic_ASUS_5G"

CONFIG_WIFI_CREDENTIALS_STATIC_SSID="HONOR_50_Pro"

52840 can work normally with both router except:"Nordicsh" in my prj.conf in the attachment

and i am suspect 7002ek version, my 7002ek version is 0.9.3&& 2023.20, is thre any problem with this version? 

 

Regards,

William.

[Marte Myrvold]

Hi William,

Can you provide some information about the router that it does not work with?
Do you have a nRF5340 DK you can test the nRF7002 EK with?

William.wei said:

and i am suspect 7002ek version, my 7002ek version is 0.9.3&& 2023.20, is thre any problem with this version? 

I am not sure if this is an issue, but I will investigate it and get back to you.

Best regards,
Marte

[William.wei]

Hi Marte,

i have tried 5340dk + 7002ek, with router"Nordicsh", it works.

bad news for me.

Regards,

William.

[Marte Myrvold]

Hi William,

I checked internally, and there should not be any issues with v0.9.3 of the nRF7002 EK that should be causing this.

Can you provide some information about the "Nordicsh" router? What model is it?

William.wei said:

i have tried 5340dk + 7002ek, with router"Nordicsh", it works.

Have you tried building with CMSE disabled (nrf5340dk_nrf5340_cpuapp) as well, or only with nrf5340dk_nrf5340_cpuapp_ns? If you have not tried without CMSE yet, please do so.

Best regards,
Marte