[blue68f100]

You said the problem is dropping off line. This is the type of problems we are use to seeing. Most know how to do the setup for their enviroment. In your case dropping off line and setting up a redundant connection are 2 different problems. The setup is normally addressed by snap techs during the free 30/90 days software support.

Need to know how many users are connected, are you using snapshots and/or AV. And what is the specific error message you get? Server not found?

1st is look at the system log and see what it reads. This is where you will need to concentrates your efforts.

I would set the second port to a static ip or dhcp. This way when if drops off you can make a connection to port #2 and look at the log. If you can not connect at all and the led's on the front panel are normal you will be forced to reboot the server. Then look at the log file. The problem sit reboots is that you have all of the startup records to get past. Know the time will help get past these. Without any errors on to what the problem is it will be hard to fix. Also look at the leds on the nic port and see if they are normal.

The GOS is good about reporting problems with hardware and kernel.

If your using a SNMP server the snap can send errors/problems to it. And most SNMP servers support email and/or pager allerts. This is very useful in tracking down problems.

Another thing that will knock if off line is for someone to use the same IP as the snap. As you know you can not have 2 devices on a network with the same IP. So if your dhcp server is giving out this IP there is a problem, another thing to look at.

Since you have a managed switch make sure you have the latest firmware.