First of all, I am not indicating this is an unRAID issue - it just includes unRAID and I'm not really sure how to continue troubleshooting this.

 

I recently upgraded hardware and was forced to upgrade to the latest RC due to lack of NIC drivers in 4.7.  I have not encountered any problems with anything there.  My unRAID server works great.

 

However, I recently introduced a new server to my network using the old unRAID hardware.  All of this hardware works, it was just getting long in the tooth for unRAID.  I am using this server to host a privatized newznab site.  It is working, but I have not really started using it.  Just got it "working".  It is running on top of Ubuntu 12.04 LTS, so is a very typical LAMP install.

 

Anyway, I found that whenever the newznab server is on the network, my unRAID server drops offline for about 5 seconds every 30 seconds to 1 minute.  I have confirmed this by running a ping -t to the unRAID from another system, then simply plugging/unplugging the server.  As soon as it clicks into the switch, unRAID fails to respond to 4-5 pings, then comes back online.  After a bit, it drops off a few seconds then comes back on...rinse and repeat.  This occurs even when the newznab server is idle and not running any scripts - it merely has to be plugged in to start happening.

 

I have replaced cables, tried segmenting the network by placing them on separate switches, and even replaced the NIC cards.  Nothing changes.  I'm only asking here because I'm not the most linux savvy person in the world.  I'm a Windows administrator, but not well versed in any linux.

 

If anyone has any ideas to share, I'd like to hear them.  It's just really odd.

Check for conflicting MAC addresses. Your unraid usb key may be forcing the old pc's MAC address, so it's showing up twice on the network.

Thanks...I'll take a look at that.  I took a look at MAC addresses, but not from that angle.  That just might be it.

 

That was it - network.cfg has not been modified since 2008...when I originally set my first server up.

 

If I delete that line, will it populate with correct MAC on reboot?  I find it odd that it was not updated with new hardware detection.

 

Daughter wasn't watching TV anymore, so I got to sneak in a reboot after deleting that line.  Fixed me right up.  Thanks!  This was driving me insane.