Watchdog Timeout when using Cross Cable between 2 pfSense boxes

  • I have this setup:

    (dsl1,2,3)=== [pfsense load balancer] –-cross cable--- [pfsense w/ squid] –------- (LAN)
                    DHCP              DHCP

    I can access the Web GUI of both pfSense machines from a LAN client, through and

    When I try to intensively access, say, when I try to upload a Firmware file, interface craps out returning this error:

    rl0: Watchdog Timeout

    When I'm just surfing the internet it works fine. Though I have not tested it yet with lots of active connections (e.g. lots of LAN clients).

    I'm using Realtek 10/100 PCI LAN Cards on both machines. pfSense 2.0 BETA4.

    Why is this happening and how do you think I can prevent this?

  • There seems to be a widely held view that at least the early Realtek NICs were pretty terrible. Perhaps you have some of that vintage.

    I have a couple of Realtek 10/100 PCI NICs and they seem to work OK for me.

    A while ago even dual port 10/100 Intel NICs were available quite cheaply on Ebay. I don't know the current situation. I forget the details now but a fairly recent FreeBSD driver for Intel 10/100 NICs had a bug in that it erroneously determined that some Intel 10/100 NICs had capabilities they really didn't have. I suspect some of the older NICs might not get a lot of test cycles from the FreeBSD developers. You might be better off spending a bit more money and getting a more current NIC.

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