Network Unreachable

[Micaiah12]

Hello All,

Started having some issues with my server after 6 days of up time. I went to update some of my dockers and after the update I could not reach my server from the web gui. I also didn't have ssh access. So I logged in locally and rebooted the server. After the server came back up I logged in locally and tested the internet with a ping command. It's output was Network unreachable. I changed the network config from static to dynamic and reboot again. This did not fix it. Any ideas? I have posted the diagnostics.

 

Thanks.

 

tower-diagnostics-20170614-2100.zip

[JorgeB]

Jun 14 20:58:56 Tower dhcpcd[1534]: br0: using IPv4LL address 169.254.147.177

You're not getting an IP address, check network config, you can boot with the GUI option and use that to configure your network.

[Micaiah12]

How is that possible when it's currently set to dynamic? My router is working just fine. All other devices work. Does unraid require something like a dns flush? 

[bonienl]

If both your static and dynamic assignments doesn't work, it indicates a bad connection. Change cable, and/or change port on your router to find out which part is failing.

[Micaiah12]

That was the first thing I did. Replaced the Ethernet cord as well as try every other port on the router. Still no luck. 

[bonienl]

5 minutes ago, Micaiah12 said:

That was the first thing I did. Replaced the Ethernet cord as well as try every other port on the router. Still no luck. 

 

Do you have another ethernet port of your server?

[Micaiah12]

Unfortunately no, the motherboard only has one. I'm not home at all but when I do get home I could test boot Linux and test the Ethernet port. However, it's unlikely that it would just go bad like that. The motherboard isn't even a year old. 

[bonienl]

Just had a quick look at your diagnostics, I presume these are taken after the problem occurred.

 

The eth0 port of your server is up with a speed of 100M, eventhough it supports 1000M. Is your router (switch) limited to 100M? Otherwise it is very likely a cabling issue.

 

[Micaiah12]

The router most likely is only a 100M version. However, I've never had a problem with it till now. Over thirty days with this router no problem. I've already changed the cables.

[bonienl]

Try the following:

 

Delete the file network.cfg in the /config folder on your flash device and reboot your server. See if this makes a difference.

 

[Micaiah12]

I have deleted the file as well as ran through some more trying new cables for ethernet without any luck. 

[bonienl]

Not sure what is causing the problem. Can you put your flash device in a Windows machine and scan/repair errors.

[Micaiah12]

Hey all. 

So after an extensive tear down of my network with new ethernet cords, new switch, and resetting the router to defaults. The server is now back online. No idea what caused it, but we are working now. Thanks all!