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I'm trying to connect my Raspberry Pi's to a WiFi network without success. Ethernet connection works flawlessly, but as I attempt to connect to WiFi using ADB as mentioned here, nothing happens. I have also tried to use the Android Things Setup Utility without success as can be seen in the terminal output.

When I try to connect through the menu option while running with a monitor connected, my particular network is not visible, even though my work's corporate networks are visible in the same menu. It should be noted that other devices are able to connect to the WiFi in question, and using any corporate network is not possible the project.

I have also tried

  • Using a cell phone as hotspot with similar result
  • Unplugging the ethernet cable when attempting to find networks(through the monitor interface)
  • Changing between password/open network
  • Both 2.4G and 5G
  • Changing SSID from uppercase to lowercase
  • Manually changing the /data/misc/wifi/wpa_supplicant.conf but cannot find any OS files on the SD card.
  • Reinstalling OS image.

I'm running Google iot_rpi3 v1.0.3

There seems to be no documentation on this issue, has anyone else encountered this problem?

argillander
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2 Answers2

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Did you trie 20MHz bandwidth for 2,4GHz? Some devices can not find wifi network with 40MHz bandwidth or 12 and 13 channel number.

Pody01
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    Changing from channel 12 to channel 6 (as the visible networks were using) solved it. But I'll definitely check the bandwidth as well. Thanks for the explanation. – argillander Aug 10 '18 at 14:28
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Solved! Solved again!

It appears as if the Wi-Fi list in the GUI only can display at most three network SSID's. This lead to the corporate networks effectively 'jam' access to my Wi-Fi as the list appears to be sorted by signal strength, and my network's RSSI was weaker than the corporate one's.

Edit: It appears as if the device does not retain the connection setup when powered down and moved to a location where other networks are present, thus rendering any other network, with weaker signal than the top 3 present, unusuable.

Edit2: Changing the router's channel from 12 to 6 seemed to do the trick. Something appears to be wonky with Raspberry Pi and channel 12. Could not update the locale either to lose the region lock.

argillander
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