No wifi signal from Yun

Official Hardware Classic Yún
1

Hello,

When I opened my Yún it worked very nicely. Now I can't get it to act as an access point, not even after resetting the wifi button for more than 30s.

I am connected to it via ethernet and so I can log into the arduino.local configuration utility. I notice three things from there:

  • The wifi interface is connected, but that it has not received any packets
  • The wifi interface is configured as an access point, in master mode
  • The signal strength is 0%
  • The wireless network is enabled
  • The DHCP server should also be enabled

However, I do not see any mention of wlan0, radio0, or DHCP in the kernel log. I clearly cannot see the network created by the yún in my computer.

I have tried crossing the "create" checkbox in the interface configuration and entering a name for the supposed new network, but without success.

I suspect that I have a configuration issue with the radio. Can anyone provide any clues?

Thank you,

Julio

2

If Detected wireless networks does not generate drop down list, then switch Firefox as browser is best bet.

3

Actually, I am already in Firefox. I cannot say wether the yun detects the existing wifi networks because the only entry shown is displayed with unreadable characters (which is not correct either)

4

If you have Yun console ( via ethernet) then type "/usr/bin/reset-to-factory-anyway" ( without quotation marks) at console to reset.
If you do not have Yun console then Seeing Yun in IDE Port menu - #19 by sonnyyu - Arduino Yún - Arduino Forum.

5

Thank you for your response, sonnyyu.

Well, after running /usr/bin/reset-to-factory-anyway I still don't have the wifi signal. The wlan blue led keeps blinking rapidly and now the web administration site says:

No valid theme found
stack traceback:

: in function 'assert'
	?: in function 'dispatch'
	?: in function <?:194>

Oops  :fearful:
6

No valid theme found
stack traceback:

: in function 'assert'

?: in function 'dispatch'
  ?: in function <?:194>
[/quote]

make sure connect web administration with ethernet ip address.

run " wifi-reset-and-reboot" might help.

Disable wifi-live-or-reset  to help find out problem.

make sure router set on less crowd channel

http://forum.arduino.cc/index.php?topic=188101.msg1580622#msg1580622

after wifi connection is OK. To confirm wifi Signal level:

http://forum.arduino.cc/index.php?topic=188101.msg1583665#msg1583665

Reable wifi-live-or-reset

nano /etc/rc.local

wifi-live-or-reset exit 0

still not work then ssh via ethernet  ip, at console rerun "/usr/bin/reset-to-factory-anyway" again.

7

Thank you again!

wifi-reboot-and-reset brought luci back.

On the other hand, running pretty-wifi-info.lua gives the following:

Current WiFi configuration
SSID: Arduino Yun-90A2DAF30256
Mode: Master
Signal: 0%
Encryption method: None
Interface name: wlan0
Active for: 10 minutes
IP address: 192.168.240.1/255.255.255.0
MAC address: 90:A2:DA:F3:02:56
RX/TX: 0/3 KBs

The blue led is normally off; it blinks only if I press the reset only. I do not see any mention of wlan or radio0 in the kernel log. Is this normal?

I tried the disable/enable button in luci but this didn't solve the problem. However, it does bring the interface inactive. When I enabled it, the pretty print showed the interface as being functional again, though without signal. The blue led is still off (should it be on?)

I cannot try the router thing now (I am at work and I have no control over the network)

Thanks again