Re: Buffalo router disupts internet connection on lease renewal

Peabody <waybackNO784SPAM44@yahoo.com> wrote:

> I have a Buffalo WHR-HP-G54 router. On the LAN side I have two
> computers, one Ethernet and one wireless. The WAN side goes to a
> Motorola SB5120 cablemodem and then to Cox Cable.
>
> On the LAN side I have DHCP disabled, and both computers have
> specific IPs assigned. On the WAN side the router obtains a
> 24-hour dynamic IP lease from Cox.
>
> Half way through the lease, the router apparently renews it, but in
> doing so drops the internet connection for a while. I just wondered
> if that's necessary. I'm pretty sure that never happened when I had
> one computer connected directly to the cablemodem, and Windows
> handled the DHCP. Couldn't the router just Renew instead of
> starting over?
>
> Or, do I have something set wrong?

Have you checked the router's log to see if anything odd is happening
during renewal? (The entries will have DHCPC in the Type column.) You
might also check the modem's log, which shold be available at
192.68.100.1.

I'm using a WHR-HP-G54 with stock (Ver.1.38) Buffalo firmware connected
to a Time Warner SB 5100 modem. My WAN DHCP renewals occur essentially
instantaneously, even though the Motorola lists a discrepancy ("Field
invalid in response") during the process. Could it be Cox's DHCP server
that's causing the delay?