This AM when I checked the router, it had counted down to 0:00:00
without trying to renew the IP. The connection was still up, which is
weird, but I had to manually renew via the web interface. Now it's
counting down from six hours.
I heard that 1.46.2 fixes the DHCP renewal, but it causes other
problems for me. (Like what this guy describes:
So, it sounds as if I'm stuck with DHCP renewal problems for now. I
don't see Linksys updating this firmware any time soon.
Thanks for your help.