Networking default route missing after each upgrade

[bfeist]

For some reason, each time I upgrade to a new version of unraid, I can't route to outside the network. I discovered it's because the default route is missing.

 

In the file attached, you can see the line I have to add manually in order to restore outbound network access.

 

Any thoughts as to how I can fix this?

 

Thanks!

[itimpi]

You are likely to get better informed feedback if you attach your system’s diagnostics zip file to your next post in this thread.

[ljm42]

Go to Settings -> Network Settings and make sure a Default Gateway is specified for eth0. If that doesn't help we'll need diagnostics

[bfeist]

Default gateway was already set on `eth0`.

Diagnostics attached. I appreciate the help.

tower-diagnostics-20230628-1002.zip

Edited June 28, 2023 by bfeist

[ljm42]

The issue is probably that both eth0 and eth2 are assigned to the same subnet with the same gateway.

 

Fix Common Problems has been warning of this:

Jun 26 11:00:24 Tower root: Fix Common Problems: Error: Multiple NICs on the same IPv4 network ** Ignored

 

 

If you go to Settings -> Network Settings, how many Network Interfaces do you see? If you can see eth2, set the "IPv4 address assignment" to none and reboot. If you don't see eth2, make a dummy change to eth0 and hit apply, then reboot. Please upload your diagnostics afterwards so I can confirm the dummy change worked, if it didn't then we will need to manually edit a file.

 

Note: once the networking issue is resolved, there is an issue with your GPU that is filling the syslog with:

Jun 27 04:40:03 Tower kernel: radeon 0000:00:01.0: ring 6 stalled for more than 28698819msec
Jun 27 04:40:03 Tower kernel: radeon 0000:00:01.0: GPU lockup (current fence id 0x00000000000012ef last fence id 0x00000000000012f0 on ring 6)

We'll need someone else to help with that.

[bfeist]

I see two (see below)

I performed the following as you instructed:

• Made a dummy change to eth0 - I changed the default gateway, applied changes then changed the value back, applied changes
• Rebooted. Default route missing again, no route to internet. Screenshot below. Diagnostics after reboot attached.

 

 

Last year I did make an attempt to add a usb-based NIC but it's no longer connected. This might be the root of the problem.

 

Thanks again.

tower-diagnostics-20230628-1211.zip

[JorgeB]

Try editing /boot/config/network.cfg and delete this part:

 

IFNAME[2]="eth2"
DESCRIPTION[2]="eth2"
PROTOCOL[2]="ipv4"
USE_DHCP[2]="no"
IPADDR[2]="192.168.0.15"
NETMASK[2]="255.255.255.0"
GATEWAY[2]="192.168.0.1"

 

Also change

SYSNICS="3" to "2"

Then reboot

[bfeist]

Thanks very much. That did the trick!

 

Ben

[ljm42]

Great! I was testing a theory on whether making a dummy change would clear out that old nic, good to know for sure it requires a manual update.