Hi NXP experts,
We are using MTK 6890 with the wifi chip AzureWave module(the model is AW-XM458) to implement our AP product.
We found that sometimes the STA cannot connect to AP Wifi 5G, but 2.4G is OK.
Test procedure as below:
1. The AP turn on 2.4G on muap0 and 5G on uap0 , and do not connect to any clients.
2. Plug in the charger (the purpose is to avoid the system enter suspend and keep Wifi active all the time,)
3. Wait for 24 hours or longer, and then a STA try to connect to 5G, but shows fail to connect. But connect to 2.4G is OK.
From the sniffer logs we found that 2.4G can be connected is because the STA (IntelCor_0c:44:b4) sent a probe Request, and AP has returned a Probe Response. But in the 5G fail case, STA (IntelCor_0c:44:b4) sent probe Request, but the AP did not return a Probe Response.
- 2G_OK.pcapng:
5552 35.094860 IntelCor_0c:44:b4 Broadcast 802.11 169 Probe Request, SN=2228, FN=0, Flags=........C, SSID=D52M-22NT-2.4GHz7187 25.304694 AzureWav_c0:cf:c1 IntelCor_07:2c:c2 802.11 372 Probe Response, SN=1532, FN=0, Flags=........C, BI=100, SSID=D52M-22NT-2.4GHz
5555 35.098792 AzureWav_c0:cf:c1 IntelCor_0c:44:b4 802.11 372 Probe Response, SN=2942, FN=0, Flags=........C, BI=100, SSID=D52M-22NT-2.4GHz
- 5G_Fail.pcapng:
454643 114.457805 IntelCor_0c:44:b4 Broadcast 802.11 175 Probe Request, SN=113, FN=0, Flags=........C, SSID=D52M-22NT-5GHz
…
460419 115.690655 IntelCor_0c:44:b4 Broadcast 802.11 175 Probe Request, SN=156, FN=0, Flags=........C, SSID=D52M-22NT-5GHz
Sniffer logs and kernel log are attached. Could you please help to check what could caused this problem?
Thank you.
