depend on TP-Link, try look for bridge/routing.
if yes, there possibility you can access the D-Link

my recommend replace TP-Link, get wireless router with QoS function

what the current address to access TP-Link & D-Link web admin
192.xxx.xxx.xxx ???

you need to change the TP-Link to 192.168.2.1
then try access yr D-Link with 192.168.1.1

Need screen shot from
Basic Settings>Network (Expand it)
Advanced Settings>Forwarding (Expand it)
Advanced Settings>IP & MAC Binding (Expand it)

even you manage get it work.

you might lost the TP-Link wireless capability. becaz D-Link will become router with (QoS).

another workaround, for wireless to work.
router behind router
1st router D-Link & 2nd router TP-Link
-internet performance degraded
-port forwarding, partial working
-QoS limited/partial working
-if you can't access to D-Link(QoS) thru TP-Link, tweaking QoS even harder.

decide yrself

This post has been edited by K for Ketamine: Jul 11 2008, 10:57 PM

Screenshot for
Basic Settings>Network>WAN (Expand it)

any chance you host yr image somewhere else(photobucket), got problem loading yesterday

select "Dynamic IP" or "802.1x + Dynamic IP."

your TP-Link need to be 192.168.2.1

when everything is done.

then try access D-Link with 192.168.1.1,

yr network will become router behind router
wish you luck

that great

next setup D-Link as router.

Need screen shot from D-Link
Device Info > WAN
Quick Setup > expand it
Advanced Setup > expand it

print screen
Advanced Setup > WAN

or else

Quick Setup > Connection type
select PPPoE > setup yr streamyx

my networking knowledge is poor too

same as above, don't worry i'm having the same routing table as yrs.

from outside(Internet), yr 1st router (D-Link)... from yr PC 1st router (TP-Link). I dunno answer

this yr network configuration
Internet -> Modem & Router(PPPoE) -> Router(AP) -> PC