Trouble Network-C0

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Trouble Network-C0

Unread postby RBaptiste » Fri Sep 23, 2016 1:03 am

Hello,

I have an Odroid C0 with Lubuntu Os, cat /proc/version :
Code: Select all
Linux version 3.10.80-131 (root@xu3-b2) (gcc version 4.9.2 (Ubuntu/Linaro 4.9.2-0ubuntu1~14.04) ) #1 SMP PREEMPT Thu Oct 15 19:53:29 BRT 2015


I have welded myself a double USB and plugged a self-powered usb hub (where keyboard/mouse/wifi adapter are also plugged).

When I configure my network connection by /etc/network/interfaces this way :

Code: Select all
auto wlan0
iface wlan0 inet dhcp
wpa-ssid my_essid
wpa-psk my_passwd


If the network is unreachable, after a reboot no sudo commands can be executed in the shell, it loops indefinitly. I'm forced to flash the eMMC and restart from scratch to execute sudo commands again.

I try to configure my network connection the same way on an other C0 and it acts the same.
I also tried it on an Odroid C1+ and it works.
I also used two different wifi usb adapter and still no results.

Maybe it comes from the hub controller which is on the C1+ and not on the C0 ?

Does someone has any idea of potential solutions ?

Don't hesitate to ask furthur information about my system config.

Thank you !
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Re: Trouble Network-C0

Unread postby odroid » Fri Sep 23, 2016 1:29 pm

What is the result of "ifconfig"?
If you can find "eth0", disable it with "sudo ifconfig eht0 down".

Try to use an HDMI display for easier debugging.
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Re: Trouble Network-C0

Unread postby RBaptiste » Fri Sep 23, 2016 5:10 pm

I already use a HDMI display.

Here is results of "ifconfig" :

- Before deactivating eth0 :

Code: Select all
odroid@odroid:~$ ifconfig
eth0      Link encap:Ethernet  HWaddr 00:1e:06:20:46:e7 
          inet6 addr: fe80::21e:6ff:fe20:46e7/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:29 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 B)  TX bytes:5677 (5.6 KB)
          Interrupt:40

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:320 errors:0 dropped:0 overruns:0 frame:0
          TX packets:320 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:25472 (25.4 KB)  TX bytes:25472 (25.4 KB)

wlan0     Link encap:Ethernet  HWaddr 5c:f3:70:03:ab:3a 
          UP 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)


- After deactivating eth0 :

Code: Select all
odroid@odroid:~$ sudo ifconfig eth0 down
[sudo] password for odroid:
odroid@odroid:~$ ifconfig
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:320 errors:0 dropped:0 overruns:0 frame:0
          TX packets:320 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:25472 (25.4 KB)  TX bytes:25472 (25.4 KB)

wlan0     Link encap:Ethernet  HWaddr 5c:f3:70:03:ab:3a 
          UP 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)


After modify/etc/network/interfaces to connect to an accessible wifi network, i try
Code: Select all
sudo ifup wlan0

Code: Select all
odroid@odroid:~$ sudo ifup wlan0
wpa_supplicant: /sbin/wpa_supplicant daemon failed to start
run-parts: /etc/network/if-pre-up.d/wpasupplicant exited with return code 1
Internet Systems Consortium DHCP Client 4.2.4
Copyright 2004-2012 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/

Listening on LPF/wlan0/5c:f3:70:03:ab:3a
Sending on   LPF/wlan0/5c:f3:70:03:ab:3a
Sending on   Socket/fallback
DHCPREQUEST of 192.168.1.81 on wlan0 to 255.255.255.255 port 67 (xid=0x120152eb)
DHCPREQUEST of 192.168.1.81 on wlan0 to 255.255.255.255 port 67 (xid=0x120152eb)
DHCPREQUEST of 192.168.1.81 on wlan0 to 255.255.255.255 port 67 (xid=0x120152eb)
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 3 (xid=0x8d4e0d5f)
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 4 (xid=0x8d4e0d5f)
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 6 (xid=0x8d4e0d5f)
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 6 (xid=0x8d4e0d5f)
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 13 (xid=0x8d4e0d5f)
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 13 (xid=0x8d4e0d5f)
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 9 (xid=0x8d4e0d5f)
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 13 (xid=0x8d4e0d5f)
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 7 (xid=0x8d4e0d5f)
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 13 (xid=0x8d4e0d5f)
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 7 (xid=0x8d4e0d5f)
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 10 (xid=0x8d4e0d5f)
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 7 (xid=0x8d4e0d5f)
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 12 (xid=0x8d4e0d5f)
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 13 (xid=0x8d4e0d5f)
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 13 (xid=0x8d4e0d5f)
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 8 (xid=0x8d4e0d5f)
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 14 (xid=0x8d4e0d5f)
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 11 (xid=0x8d4e0d5f)
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 18 (xid=0x8d4e0d5f)
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 7 (xid=0x8d4e0d5f)
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 10 (xid=0x8d4e0d5f)
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 9 (xid=0x8d4e0d5f)
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 18 (xid=0x8d4e0d5f)
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 13 (xid=0x8d4e0d5f)
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 14 (xid=0x8d4e0d5f)
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 20 (xid=0x8d4e0d5f)
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 10 (xid=0x8d4e0d5f)
No DHCPOFFERS received.
Trying recorded lease 192.168.1.81
PING 192.168.1.254 (192.168.1.254) 56(84) bytes of data.

--- 192.168.1.254 ping statistics ---
1 packets transmitted, 0 received, +1 errors, 100% packet loss, time 0ms

No working leases in persistent database - sleeping.


So it doesn't succed to connect (i checked with ifconfig) but after a reboot it works.

I tried to connect to a non-accessible wifi network the same way.
Code: Select all
sudo ifup wlan0
gives the same result and after rebooting it still freeze my sudo commands.

Here is my "lsusb" command result :

Code: Select all
odroid@odroid:~$ lsusb
...
Bus 002 Device 004: ID 0bda:8172 Realtek Semiconductor Corp. RTL8191SU 802.11n WLAN Adapter
...


And "dmesg | gep usb" :

Code: Select all
odroid@odroid:~$ dmesg | grep usb
[    0.782772@0] usbcore: registered new interface driver usbfs
[    0.788272@0] usbcore: registered new interface driver hub
[    0.793794@0] usbcore: registered new device driver usb
[    5.196601@0] usbcore: registered new interface driver usb-storage
[    5.202523@0] usbcore: registered new interface driver usbserial
[    5.208402@0] usbcore: registered new interface driver usbserial_generic
[    5.215084@0] usbserial: USB Serial support registered for generic
[    5.286892@0] usbcore: registered new interface driver usbhid
[    5.292379@0] usbhid: USB HID core driver
[    7.876298@0] usb1: type: 1, speed: 0, config: 0, dma: 0, id: 1, phy: fe108820, ctrl: fe080000
[    7.987231@0] usb0: type: 0, speed: 0, config: 0, dma: 0, id: 0, phy: fe108800, ctrl: fe040000
[    8.191179@2] set usb port power on (board gpio 5)!
[    9.210204@0] usb 2-1: new high-speed USB device number 2 using dwc_otg
[    9.810328@0] usb 2-1.1: new high-speed USB device number 3 using dwc_otg
[   10.190309@3] usb 2-1.1.1: new high-speed USB device number 4 using dwc_otg
[   10.390370@3] usb 2-1.1.2: new low-speed USB device number 5 using dwc_otg
[   10.523314@0] input: LITE-ON Technology USB NetVista Full Width Keyboard. as /devices/lm0/usb2/2-1/2-1.1/2-1.1.2/2-1.1.2:1.0/input/input1
[   10.530576@0] hid-generic 0003:04B3:3025.0001: input,hidraw0: USB HID v1.10 Keyboard [LITE-ON Technology USB NetVista Full Width Keyboard.] on usb-lm0-1.1.2/input0
[   10.630295@3] usb 2-1.1.4: new low-speed USB device number 6 using dwc_otg
[   10.763183@2] input: USB Optical Mouse as /devices/lm0/usb2/2-1/2-1.1/2-1.1.4/2-1.1.4:1.0/input/input2
[   10.767625@2] hid-generic 0003:1BCF:0007.0002: input,hiddev0,hidraw1: USB HID v1.10 Mouse [USB Optical Mouse] on usb-lm0-1.1.4/input0
[   12.368286@3] usb 2-1.1.1: r8712u: USB_SPEED_HIGH with 4 endpoints
[   12.371087@3] usb 2-1.1.1: r8712u: Boot from EFUSE: Autoload OK
[   13.317110@3] usb 2-1.1.1: r8712u: CustomerID = 0x0000
[   13.317116@3] usb 2-1.1.1: r8712u: MAC Address from efuse = 5c:f3:70:03:ab:3a
[   13.317121@3] usb 2-1.1.1: r8712u: Loading firmware from "rtlwifi/rtl8712u.bin"
[   13.317264@3] usbcore: registered new interface driver r8712u
[   65.019939@3] usb 2-1.4: new high-speed USB device number 7 using dwc_otg
[   65.122246@3] usb-storage 2-1.4:1.0: USB Mass Storage device detected
[   65.122842@3] scsi0 : usb-storage 2-1.4:1.0


Thank you for your help.
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Re: Trouble Network-C0

Unread postby odroid » Fri Sep 23, 2016 5:40 pm

Do you use our 16.04 Ubuntu Mate image? or 14.04 ?
They might have different network manager behaviors.
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Re: Trouble Network-C0

Unread postby RBaptiste » Fri Sep 23, 2016 5:43 pm

14.04
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Re: Trouble Network-C0

Unread postby RBaptiste » Tue Sep 27, 2016 5:22 pm

Little up to see if you have any further suggestions about my problem.

Thank you !
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Re: Trouble Network-C0

Unread postby odroid » Tue Sep 27, 2016 6:53 pm

Please try it with 16.04 because we don't support 14.04 anymore.
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Re: Trouble Network-C0

Unread postby jit » Mon Apr 17, 2017 6:37 am

Sorry to reply to an old post, but is this problem has been solved ? I'm asking because I'm having the same problem with my odroid c0 ;(

I tested with Archlinux and debian jessie, both with a wifi dongle and an USB ethernet adapter... in both case, the DHCP OFFER is issued by my router (as I can see in log file) but the odroid c0 seems not to receive it and the dhcpc process times out.
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Re: Trouble Network-C0

Unread postby odroid » Mon Apr 17, 2017 9:42 am

Can you please try this latest Ubuntu image to narrow down the root cause?
http://odroid.com/dokuwiki/doku.php?id= ... _note_v2.3
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Re: Trouble Network-C0

Unread postby jit » Wed Apr 19, 2017 4:12 am

OK, I tried with the latest Ubuntu image found on the link you gave.
Unfortunately, I faced the same problem. Below are some details.

After Boot-up, I plugged the usb ethernet, dmesg give :
Code: Select all
[   98.806768] usb 2-1.2: USB disconnect, device number 3
[  102.756898] usb 2-1.2: new full-speed USB device number 5 using dwc_otg
[  102.877394] rtl8150 2-1.2:1.0: eth1: rtl8150 is detected


=> device eth1 seems found... and lsmod confirm that the rtl8150 has been loaded :

Code: Select all
Module                  Size  Used by
nls_cp437               5117  1
rtl8150                 8703  0
w1_gpio                 3430  0
wire                   20699  1 w1_gpio
joydev                  8735  0
snd_usb_audio         122021  0
snd_hwdep               5784  1 snd_usb_audio
snd_usbmidi_lib        17430  1 snd_usb_audio
snd_rawmidi            19457  1 snd_usbmidi_lib
snd_seq_device          6079  1 snd_rawmidi
meson_gpiomem           3378  0
autofs4                22255  2



If I try "ifconfig eth1 up"
, I get an error : "ERROR while getting interface flags: No such Device"

ifconfig -a give :

enx00e04c815214 Link encap:Ethernet HWaddr 00:e0:4c:81:52:14
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)

eth0 Link encap:Ethernet HWaddr 00:1e:06:20:42:42
inet6 addr: fe80::21e:6ff:fe20:4242/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:30 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:8676 (8.6 KB)
Interrupt:40

ip6tnl0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
NOARP MTU:1452 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:0
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

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:1124 errors:0 dropped:0 overruns:0 frame:0
TX packets:1124 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:83136 (83.1 KB) TX bytes:83136 (83.1 KB)

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:0
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)


=> well... hmmm, the interface is in fact "enx00e04c815214". But why eth0 is present on C0 ? Is the device tree correct for this Odroid ??

Nevertheless, I did a "ifconfig enx00e04c815214 up"

=> OK

then dhclient -4 -d -v enx00e04c815214

=> infinite DHCPDISCOVER, like under debian jessie and archlinux :(

On the dhcp server side, I can see that a DHCP response is sent.

If I try the same usb ethernet adapter with the same cable on the same switch port, it works perfectly fine.
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Re: Trouble Network-C0

Unread postby odroid » Wed Apr 19, 2017 11:41 am

We are sharing a single DT file with C1 and C0.
Can you try "dhclient" after "ifconfig eth0 down"?
I also want to know what happens if you use a static IP. Can you ping your C0 from PC?
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Re: Trouble Network-C0

Unread postby jit » Thu Apr 20, 2017 6:24 am

I tried to disable eth0 with "ifconfig eth0 down" before trying "dhclient -d -v -4 enx00e04c815214"... but same problem : no dhcpoffer received.
When I look at my dhcpserver, I can see in the lease file that a different IP address has been sent for each DHCPRequest, nothing received from odroid c0.

Setting a static IP don't generate error, but I can't reach the odroid C0 nor I can ping any other network neighbours from the C0 ;(

Just in case, I also tested to plug the usb ethernet to a raspberry pi 2 under debian with nothing else changed (same ethernet cable, same switch,same power adapter etc.). It worked flawlessly both with DHCP and static IP.

So its definitly not a problem with ethernet cable, usb ethernet , switch, router nor power adapter.

Under Archlinux, I tried with a wifi dongle (after offline install of iw and wpa_suplicant) and I had the same problem... whereas the same wifi settings works on all others hardware (smartphone, PI2, tablet...).

There is definitly something strange with the C0... I am the only one to face this ? Aren't you able to reproduce this problem ?

Thanks for your help
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Re: Trouble Network-C0

Unread postby linuxest » Thu Apr 20, 2017 12:18 pm

Is there any hint in this thread? viewtopic.php?f=112&t=25580
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Re: Trouble Network-C0

Unread postby jit » Thu Apr 20, 2017 5:21 pm

Thank you for your suggestion linuxest, but I'm already using the "enx..." interface. And I'm facing the exact same problem with wireless dongle and ethernet adapter... whereas both works correctly with the same conditions when plugged to another computer (laptop, Pi2) :(
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Re: Trouble Network-C0

Unread postby odroid » Thu Apr 20, 2017 5:43 pm

I've freshly installed the latest Ubuntu 16.04 image on my C0 and booted.
http://odroid.com/dokuwiki/doku.php?id= ... _note_v2.3
The preinstalled Kernel version is 3.10.104-186.

I just connected C0 to an HDMI monitor and plugged our WiFi module 3 (RTL8188CUS chipset).
I could use the GUI network manager on the right top corner of the desktop GUI to get an IP.
After connected, I have this result.
Code: Select all
odroid@odroid:~$ ifconfig                                                       
enx7cdd908e051b Link encap:Ethernet  HWaddr 7c:dd:90:8e:05:1b                   
          inet addr:192.168.30.46  Bcast:192.168.30.255  Mask:255.255.255.0     
          inet6 addr: fe80::7edd:90ff:fe8e:51b/64 Scope:Link                   
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1                   
          RX packets:1907 errors:0 dropped:75 overruns:0 frame:0               
          TX packets:1001 errors:0 dropped:0 overruns:0 carrier:0               
          collisions:0 txqueuelen:1000                                         
          RX bytes:2816702 (2.8 MB)  TX bytes:106522 (106.5 KB)                 
                                                                               
eth0      Link encap:Ethernet  HWaddr 00:1e:06:20:47:12                         
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1                   
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0                   
          TX packets:210 errors:0 dropped:0 overruns:0 carrier:0               
          collisions:0 txqueuelen:1000                                         
          RX bytes:0 (0.0 B)  TX bytes:42370 (42.3 KB)                         
          Interrupt:40                                                         
                                                                               
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:904 errors:0 dropped:0 overruns:0 frame:0                 
          TX packets:904 errors:0 dropped:0 overruns:0 carrier:0               
          collisions:0 txqueuelen:0                                             
          RX bytes:72816 (72.8 KB)  TX bytes:72816 (72.8 KB)

odroid@odroid:~$ iwconfig                                                       
sit0      no wireless extensions.                                               
                                                                               
enx7cdd908e051b  IEEE 802.11bgn  ESSID:"HK_Ruppi_2.4G"  Nickname:"<WIFI@REALTEK"
          Mode:Managed  Frequency:2.472 GHz  Access Point: 88:36:6C:08:F0:02   
          Bit Rate:150 Mb/s   Sensitivity:0/0                                   
          Retry:off   RTS thr:off   Fragment thr:off                           
          Power Management:off                                                 
          Link Quality=100/100  Signal level=-50 dBm  Noise level=0 dBm         
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0             
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0             
                                                                               
lo        no wireless extensions.                                               
                                                                               
eth0      no wireless extensions.                                               
                                                                               
ip6tnl0   no wireless extensions.


Now I'm posting this reply on my C0 with Chromium browser.


If you want to configure the WiFi on CLI, refer this WiKi page.
http://odroid.com/dokuwiki/doku.php?id= ... wifi_setup
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Re: Trouble Network-C0

Unread postby jit » Thu Apr 20, 2017 9:59 pm

ok, what I understand is that you're not able to reproduce the same problem, and a similar config is running for you.

I'll will try to investigate a bit, but frankly as the same hardware works on all my other computers, I'm not going to loose a lot of time with my C0 :(
Anyway, as it is for a project to build a portable gaming console, I will probably try a custom buildroot or an offline archlinux package install.

Thank you for your support.
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