With our (intentionally) short TTL, our network can go bad really quickly.
We've never had a situation where the whole thing went down and would not
come up for a significant time.

If the same MAC address appears twice in the dhcpd.conf file, it will fail
silently and cruelly.  Check for that.  It's usually some kind of
violation, *for which you will receive no notification* that kills DHCPD.

Curt


On Fri, Mar 1, 2013 at 3:21 PM, Howard White <[email protected]> wrote:

> Out of air speed, altitude and ideas.
>
> Near lunch time our network started going stupid.  Rest assured I've done
> all manner of testing and restarting trying to clear the fault.
>
> Current situation is that DHCP on bot the LAN and the WLAN will resolve
> reserved addresses but will not hand out addresses from the dynamic pool.
>         range 192.168.nn.129 192.168.nn.200;
>
> I reverted to a prior, known good, dhcpd.conf and restarted.  The version
> dhcpd.conf does not change the dynamic behavior.
>
> Power cycle switches???
>
> Howard
>
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