ultra96-V2 wifi connection

This appeared when I googled the message: misoji-engineer.com/.../vitis-ai-2-0.html

Have you tried running the .sh files?

I think I'm making some progress, but still having some issues.

When running ifdown I get the following output:

ifdown: interface wlan0 not configured

I have tried using ip link set wlan0 down instead. That seems to work and doesn't report any error.

However when running either ifup wlan0 or ip link set wlan0 up, I get the following error

[ 883.500230] power up request for already powered up source Wifi
[ 883.506161] Device already up. request source is Wifi
[ 883.511239] wilc_sdio mmc1:0001:1 wlan0: Failed to get mac address
[ 883.517421] wilc_sdio mmc1:0001:1: wilc_sdio_disable_interrupt
RTNETLINK answers: Invalid argument

Any idea of what could be the problem?

The other thing I have tried is to use the output of the display port. This is the option that the official guide suggests and uses a web server interface.
However, I seem to run into the following error:

ERROR:gcm_channel_status_request.cc(145)] GCM channel request failed.

It appears to be related to Chromium (or maybe Selenium) but I cannot find a fix.

Has anyone encountered the same issue and knows how to get around it?

Thanks again

Yes, when trying to connect via wifi (using wifi.sh) I run into a problem with the configuration of the LAN. ifup wlan0 throws an error as if the device was already up (even if I set down that connection right before).

I have the exact same issues with 2 different boards ordered recently. And I could test with the same SD card on a 3rd Ultra96-V2 which could get the Wifi connection up and running.

Neither the bluetooth or the wifi are working.

Have you found a solution to this issue?

This is frustrating: I received yesterday my Ultra96-V2 and WiFi is not working as expected from getting started guide ... I was speculating a systematic issue, hence a possible SW one, but your statement goes unfortunately in the HW direction ...

Hello sir, I also have the same issues. When the ultra96V2 is started from the sdcard that having been flashed with  ultra96v2_oob_2020_1_210303_8GB by etcher. the terminal is always reporting ERROR:gcm_channel_status_request.cc(145)] GCM channel request failed, and i cannot see the network called Ultra96-V2_<MAC_ADDRESS> in windows10 of my pc.

I also tried using the wifi.sh, I get the problem as follow:

root@ultra96v2-2020-1:~# ./wifi.sh
Stopping Connection Manager
ifdown: interface wlan0 not configured
Successfully initialized wpa_supplicant
[  452.862578] power up request for already powered up source Wifi
[  452.868507] Device already up. request source is Wifi
[  452.873584] wilc_sdio mmc1:0001:1 wlan0: Failed to get mac address
[  452.879769] wilc_sdio mmc1:0001:1: wilc_sdio_disable_interrupt
Could not set interface wlan0 flags (UP): Invalid argument
nl80211: Could not set interface 'wlan0' UP
nl80211: deinit ifname=wlan0 disabled_11b_rates=0
wlan0: Failed to initialize driver inte[  452.901227] power up request for already powered up source Wifi
rface
[  452.910258] Device already up. request source is Wifi
[  452.918127] wilc_wlan_firmware_downloadDownloading firmware size = 136788
[  453.141540] wilc_wlan_firmware_download Offset = 119860
[  453.149016] wilc_wlan_firmware_download Offset = 136788
[  453.685160] wilc_sdio mmc1:0001:1: wilc_sdio_disable_interrupt
RTNETLINK answers: Input/output error
udhcpc: started, v1.31.0
[  454.724941] power up request for already powered up source Wifi
[  454.730897] Device already up. request source is Wifi
[  454.735992] wilc_sdio mmc1:0001:1 wlan0: Failed to get mac address
[  454.742177] wilc_sdio mmc1:0001:1: wilc_sdio_disable_interrupt
RTNETLINK answers: Invalid argument
udhcpc: sending discover
udhcpc: sendto: Network is down
udhcpc: read error: Network is down, reopening socket
udhcpc: sending discover
udhcpc: sendto: Network is down
udhcpc: read error: Network is down, reopening socket
udhcpc: sending discover
udhcpc: sendto: Network is down
udhcpc: read error: Network is down, reopening socket
udhcpc: read error: Network is down, reopening socket
udhcpc: read error: Network is down, reopening socket
udhcpc: read error: Network is down, reopening socket
udhcpc: read error: Network is down, reopening socket
udhcpc: read error: Network is down, reopening socket

So i tried ip link set wlan0 down and ip link set wlan0 up, then i got erros as follow

root@ultra96v2-2020-1:~# ip link set wlan0 down
root@ultra96v2-2020-1:~# ip link set wlan0 up
[  792.877742] power up request for already powered up source Wifi
[  792.883680] Device already up. request source is Wifi
[  792.891445] wilc_wlan_firmware_downloadDownloading firmware size = 136788
[  793.113877] wilc_wlan_firmware_download Offset = 119860
[  793.121413] wilc_wlan_firmware_download Offset = 136788
[  793.653169] wilc_sdio mmc1:0001:1: wilc_sdio_disable_interrupt
RTNETLINK answers: Input/output error

Besides, I also get a img called ultra96v2_sbc-v2022.2-2023-05-10.img from Ultra96V2 GSC. After flashing this img, the GCM channel error is disappered. But the wifi is still not working, after excuting ./wifi.sh, errors are as follow:

root@u96v2-sbc-2022-2:~# ls
Vitis-AI                       bt.sh            usb_gadget_ethernet.sh
asl_classification_vitis_ai    dpu_sw_optimize  wifi.sh
avnet_dualcam_python_examples  pmic-prog        wpa_supplicant.conf
root@u96v2-sbc-2022-2:~# ./wifi.sh
Stopping Connection Manager
ifdown: interface wlan0 not configured
Successfully initialized wpa_supplicant
nl80211: kernel reports: Authentication algorithm number required[   79.334456]                       power up request for already powered up source Wifi

[   80.095288] wilc_sdio mmc1:0001:1 wlan0: WLAN initialization FAILED
Could not set interface wlan0 flags (UP): Timer expired
nl80211:[   80.102467] wilc_sdio mmc1:0001:1 wlan0: Failed to frame register
 Could not set interface 'wlan0' UP
nl80211: deinit ifname=wlan0 disabled_11b_rates=0
wlan0: Failed to initialize driver interface
[   80.176570] power up request for already powered up source Wifi
[   80.182567] wilc_sdio mmc1:0001:1 wlan0: Failed to set driver handler
[   80.189050] wilc_sdio mmc1:0001:1 wlan0: Failed to get mac address
RTNETLINK answers: Invalid argument
udhcpc: started, v1.34.1
[   82.194842] power up request for already powered up source Wifi
[   82.943261] wilc_sdio mmc1:0001:1 wlan0: WLAN initialization FAILED
RTNETLINK answers: Timer expired
udhcpc: broadcasting discover
udhcpc: sendto: Network is down
udhcpc: read error: Network is down, reopening socket
udhcpc: read error: Network is down, reopening socket
udhcpc: read error: Network is down, reopening socket

And errors of ip link set wlan0 up/down are as follow:

root@u96v2-sbc-2022-2:~# ip link set wlan0 down
root@u96v2-sbc-2022-2:~# ifconfig -a
lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:1073 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1073 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:82876 (80.9 KiB)  TX bytes:82876 (80.9 KiB)

p2p0      Link encap:Ethernet  HWaddr 00:00:00:00:00:00
          BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

sit0      Link encap:IPv6-in-IPv4
          NOARP  MTU:1480  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

wlan0     Link encap:Ethernet  HWaddr 00:00:00:00:00:00
          BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

root@u96v2-sbc-2022-2:~# ip link set wlan0 up
[  295.100081] power up request for already powered up source Wifi
[  295.839213] wilc_sdio mmc1:0001:1 wlan0: WLAN initialization FAILED
RTNETLINK answers: Timer expired
root@u96v2-sbc-2022-2:~#

Sir, Have you fixed that problem? Is there any chance that we can talk about this problem by X or other contact way. Thank you very much.

I have the same issue here. Did you figure out?

I have the same issue, have you checked this errata?  Looks like the wrong component was mounted on Y1 on some boards.

www.avnet.com/.../Errata 24001 U96 WiFi.pdf