First, go to 192.168.0.1 and change the DHCP range to 192.168.0.10 to 192.168.0.200
Once you have DD-WRT installed do this...
Go to http://192.168.1.1/index.asp and change the following;
WAN Connection Type : Disabled
STP : Disabled
Router Name : Whatever you want to call it
Local IP Address : 192.168.0.2
Subnet Mask : 255.255.255.0
Assign WAN port to Switch : Checked
DHCP Type : DHCP Forwarder
DHCP Server : 192.168.0.1
Now click apply settings.
Now plug your cable from your DG834 into you 3700 (doesnt matter what port now they are all switch ports) and you can plug all of your devices in as well.
You should now be able to browse to 192.168.0.1 and get your DG834 and browse to 192.168.0.2 and get the settings page for the 3700.
You can now set up your wireless settings on the 3700.
All of the above basically turns the 3700 into a dumb gigabit switch with a built in wireless access point.
Once you have DD-WRT installed do this...
Go to http://192.168.1.1/index.asp and change the following;
WAN Connection Type : Disabled
STP : Disabled
Router Name : Whatever you want to call it
Local IP Address : 192.168.0.2
Subnet Mask : 255.255.255.0
Assign WAN port to Switch : Checked
DHCP Type : DHCP Forwarder
DHCP Server : 192.168.0.1
Now click apply settings.
Now plug your cable from your DG834 into you 3700 (doesnt matter what port now they are all switch ports) and you can plug all of your devices in as well.
You should now be able to browse to 192.168.0.1 and get your DG834 and browse to 192.168.0.2 and get the settings page for the 3700.
You can now set up your wireless settings on the 3700.
All of the above basically turns the 3700 into a dumb gigabit switch with a built in wireless access point.