WAN Connection Keeps Cycling (Intel NIC and SB6141)

[jcrawford]

Hello,

I'm setting up opnsense for the the first time and running across a problem I can't figure out..

I have a computer that has two interfaces (1) Intel NIC and (2) Realtek NIC.  My internet connection is with Comcast and I'm using a Arris Surdboard SB6141. 

If I assign my Realtek NIC (RTL8169) to the WAN device and connect to the SB6141, everything is fine.

If I assign the Intel NIC (NM10/ICH7 Family), then I have a ton of problems.  The device gets the WAN address from the cable modem but quickly (within 30 seconds) resets to being in a down state and seems to reinitialize.  It just keeps looping, WAN address assigned, Gateway opened, WAN connection goes down--rinse and repeat.

I can keep my connection working by using the Realtek connection for my WAN connection, but I'm trying to move to a QOTOM-Q190G4 mini computer.  That computer has 4 Intel NICs and the same problem happens on that setup. 

I have no clue how to troubleshoot this one.... All my searching has been for naught.  Any suggestions?

[newsense]

Assuming you have 19.1, did you install any updates yet while connected to the working NIC ?

[jcrawford]

I'm on OPNsense 19.1.r2-amd64.

I didn't install any updates after installing the system.  My new system (that also experiences this problem when on an intel NIC is 18.7).

[franco]

It's probably https://github.com/opnsense/core/issues/3197#issuecomment-463988437

you can patch this from the console using:

# opnsense-patch 90c0c395

But this will be removed on any firmware upgrades until 19.1.2 is out...


Cheers,
Franco

[jcrawford]

I will try that.  I'm trying to make sense of it all, but just to add detail -- everything works fine if I put myself on a static IP address using the settings provided by DHCP from Comcast.  Does that make sense given what this patch addresses?

[jcrawford]

The patch noted above fixed the issue for those that might be interested.

Strike that--- it didn't fix the issue.  Turns out I have to configure the interface using a static IP that copies the IP i know that Comcast handed out.

[newsense]

Thanks for the confirmation.