Hey all. Im new to this forum but not new to dd-wrt however its the first time I am running it on a netgear router with all my past dd-wrt installs were on linksys routers. 

Anyway here is my issue and perhaps someone can offer some advise. I have a client that I installed dd-wrt on his office Netgear WNR300L router. I was originally using the latest dd-wrt release from the dd-wrt site but I have since reverted/installed to the version hosted here on this site, the DD-WRT Kong Mod USB/FTP/miniDLNA/Samba3 build 15758. The problem is nightly and sometimes multiple times a day the internet drops and my client has to reboot both the dsl modem and the netgear to get his internet back.  I have the dsl modem configured to supply the pppoe username and password and I have the keep-alive on the dsl set to always. To try and trouble-shoot the issues since this client is really not local to me I have swapped out the netgear router with a separate unit thinking the first one may be a little flaky, however the problem continues. I have identified another thread here with a user explaining that his netgear router was getting all zeros from the wan dhcp setup and a user kt_hattock mentioned the following to try and fix it.

"The default configuration of the firewall blocks DHCP renewal responses which causes 
it to request a new IP and for current connections to be dropped whether the address 
changes or not.

Save this command to the firewall script on the Administration->Commands page to fix it:

wanf=`get_wanface`
iptables -I INPUT 2 -i $wanf -p udp --dport 68 -j logaccept"

I have also turned off the pppoe on the dsl modem and set the router to supply this info but the problem still persisted. I'm trying to figure if the dsl modem or the line to his location may be the cause but AT&T has insisted that everything looks fine on their end.

So is it a valid thing to try by setting the firewall script to what is listed above?

Thanks for any info.

Doug D in CT.