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Steve L

Odroid C2 Wi-Fi can see SSID's but will not connect

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Armbianmonitor:

Hi All

 

Sorry if this is a repeat issue, however, I  am new to Armbian and I am trying to get an Odroid C2 board to work with WI-FI

 

I have tried several WI-FI adapters including the official Odroid USB wifi adapter with single antenna and none of them . will let me join a network, evne though I can see a list of WI-FI SSID's.

 

Other builds of LInux (obtained from Hardkernel work fine, however I need a version with a later kernal to run an AWS package.

 

Wired network is fine, just wifi.

 

 

Can anyone help?

 

 

Regards

 

Steve

 

 

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1 hour ago, Steve L said:

Can anyone help?


First try:
- update to beta builds: armbian-config -> system

or

- download most recent images

 

1 hour ago, Steve L said:

Other builds of LInux


Hardkernel provides their builds only with prehistoric kernel v3.16.y where certain things still work better, while others don't. We only provide modern kernel which have other problems. Perhaps you just find one. Some wireless drivers might be broken, while other works (better). Its a huge change between those kernels.

 

I must say that I didn't experienced such problems, but I will check. I do have one official Hardkernel wireless here. I believe its Realtek 8811AU based.

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Armbianmonitor: http://ix.io/26J5

 

There is indeed something wrong ... I made few quick tests.

Realtek 5370 works without a problem while 8811 - 8814AU works only once, then you can't reconnect again. If you clear connections (from/etc/NetworkManager/system-connections) and restart Network manager it works again. Remember that there is also a cosmetic bug - Network manager shows that is not connected (GUI) but in fact its connected (type ifconfig and you will see that you got an IP).

We don't maintain those drivers so if you run into the troubles, file an issue here: https://github.com/aircrack-ng/rtl8812au

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Hi Igor

 

I tried what you suggested and have still not been able to fix the issue. I never could get the adapters to connect even once. It is very strange. all they report is network not found, even though they can see the network when you scan for it,

 

To speed things up for me, I have ordered some Realtek 5370 based adapters and hopefully I will receive and test them later today.

 

Also, I will contact Aircrack to see if they can help with the non 5370 adapters.

 

Thanks for your help.

 

Regards

 

Steve

 

 

 

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Well I have some interesting results.

 

  • I purchased two identical wi-fi adapters based on Realtek 5370 chipset.
  • I attached one of these to my Odroid C2 and low and behold it worked. I could see SSID's of various networks and I could join them! All was well.
  • Then, I powered down the unit and replaced the wi-fi adapter with the second unit I purchased. On power up I could se the SSID's but I was back to the same problem. Cannot connect to the network.
  • I had a separate SD card with Armbian on it that had not been run before and so I booted this up with the second wi-fi adapter connected and it functioned fine. Allowing me to connect to any network I could see in the list of SSID's. 

 

I then powered the system down, replace the wi-fi card with the first unit that worked fine previously and guess what? It no longer works. Could see the SSID's but cannot join the network.

 

So interestingly it appears that once the 5370 based wifi adapter is detected, if you replace it with an identical unit, it stops working. I can only assume it has somthing to do with mac addresses etc. I do notice that when the system works. wlan0 is defined, otherwise it is defined as something completely different (excuse the lack of info here as i do not have the unit running at the moment)

 

Can anybody suggest a way of deleting referneces to the previous wi-fi card so that I do not have to make separate builds for each device?. I intend on making around 10-15 Odroid based units.

 

Thanks again.

 

Steve

 

 

 

 

 

 

 

 

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