I suspect you don't have a good physical connection between the switch and pfSense LAN interface - perhaps a broken cable or one end is not completely plugged into the socket. Please post the output of the pfSense shell command```
ifconfig re0
@jhilgeman:
> In /var/log/dhcpd.log, I see the normal startup info, and hten on the last few lines:
>
> Listening on BPF/re0/<mac>/192.168.1.0/24
> Sending on BPF/re0/<mac>/192.168.1.0/24
> Sending on Socket/fallback/fallback-net
>
> Nothing else.</mac></mac>
The DHCP server is not seeing DHCP requests from the client.
@jhilgeman:
> When I ping, I -was- getting something about sendto: No host found" or something like that, I think, but when I do it now, I'm getting:
>
> sendto: No buffer space available
PERHAPS the LAN interface transmit buffers are full with ARP requests waiting for the interface to report it has seen carrier from a switch or another NIC.
It could also be the re driver doesn't correctly work with your particular NIC which is apparently a fairly new variant.