troubleshoot potentially bad nic on Decisio appliance

[DEC740airp414user]

I have a Dec740 that has a device plugged into port 0.   with 2 different cables the led's randomly turn off on the appliance,  and the device gives a pop up message saying network lost.

where can i find logs to troubleshoot this. 

[lilsense]

couple of Questions:

- "...randomly turn off on the appliance..." Do you mean that when the interface goes down, which device turns off, the DEC740 or the attached device?
- Is this copper cable? What CAT 5/6/7? How long is this cable?
- When did this issue start or is this the 1st time?


you can ssh to the DEC740 drop into the shell and cd to /var/log and look at the messages file and/or others to see what's going on. you can do this in the GUI under System Log files.

[DEC740airp414user]

the network lights on the Dec actually turn off.  this is 2 different 5 foot cables to my Apple Tv.   i am going to try an actual switch this weekend to see if its the device itself.    its only 2 months old though..

   the Tv then shows network disconnected  every 15 seconds or so.

honestly it happened when i installed  26.7 to see how it was.     since then i have gone back to a snapshot of 26.4 but it still occurs

[lilsense]

I recommend moving that device to another port and see what happens.

[DEC740airp414user]

thats my plan

are there logs anywhere i can check for potential hardware failures or similar?

[lilsense]

Code Select Expand

#dmesg | more
you can also look into the /var/log/ directory

[franco]

Dmesg should show up/down and I'm supposing this is about igc?

# ifconfig igc1 | grep media
   media: Ethernet autoselect (1000baseT <full-duplex>)

If it negotiates 2500 in auto mode this may be an issue.  Check the right interface.


Cheers,
Franco

[DEC740airp414user]

I haven't had much time in front of the issue, but I did run these commands.  DEC 740 port 0 is the one having the issue / igc0


[25] ax0: Receive checksum offload Disabled
[25] ax0: VLAN filtering Disabled
[25] ax0: VLAN Stripping Disabled
[25] vlan0: changing name to 'vlan01'
[25] ax0: Registering VLAN 30
[25] ax0: xgbe_config_sph_mode: SPH disabled in channel 0
[25] ax0: xgbe_config_sph_mode: SPH disabled in channel 1
[25] ax0: xgbe_config_sph_mode: SPH disabled in channel 2
[25] ax0: RSS Enabled
[25] ax0: Receive checksum offload Disabled
[25] ax0: VLAN filtering Disabled
[25] ax0: VLAN Stripping Disabled
[25] ax0: VLAN 30 already registered
[25] ax0: xgbe_config_sph_mode: SPH disabled in channel 0
[25] ax0: xgbe_config_sph_mode: SPH disabled in channel 1
[25] ax0: xgbe_config_sph_mode: SPH disabled in channel 2
[25] ax0: RSS Enabled
[25] ax0: Receive checksum offload Disabled
[25] ax0: VLAN filtering Disabled
[25] ax0: VLAN Stripping Disabled
[25] igc0: link state changed to DOWN
[25] igc1: link state changed to DOWN
[26] wg0: link state changed to UP
[26] wg1: link state changed to UP
[29] igc1: link state changed to UP
[29] igc0: link state changed to UP
[95297] igc0: link state changed to DOWN
[95300] igc0: link state changed to UP
[95313] igc0: link state changed to DOWN
[95317] igc0: link state changed to UP
[95340] igc0: link state changed to DOWN
[95343] igc0: link state changed to UP
[95377] igc0: link state changed to DOWN
[95401] igc0: link state changed to UP
root@OPNsense:~ #


2nd command : 

   media: Ethernet autoselect (1000baseT <full-duplex>)
root@OPNsense:~ # ifconfig igc0 | grep media
   media: Ethernet autoselect (1000baseT <full-duplex>)
root@OPNsense:~ #