Hi, I have a dlink DSL-G604T router, wlan light not on.

You can download the manual from this WEB site.
ftp://files.dlink.com.au/products/DSL-G604T/REV_A/QuickInstallGuide/DSL-G604T_QIG_v1.00.pdf
Page 8 gives you instruction on changing the password.

Hi ! If it is your only computer Make sure the you use ADSL filters not only on your router to phone line connections but also on every phone you use. If you have any other computers on your network please explain how they are connected and what OS do they use?

Common with single antenna routers and adsl/router boxes, i use a zoom x6 adsl with wireless and i was having similar problems , it also has a single antenna so i disabled its wireless feature and got a linksys rangebooster router dedicated to my wireless needs, has good range and its durable, Im basically suggesting that you get another wireless router with dual antennae and use that for your wireless needs, hook that up to your DLINK modem via ethernet cable and disable the dlink's wireless feature...Hope this helps..

Hi,
Assign Static IP address to the netwok

you can try after change the ethrenet cable also between router and your PC.

1,there is a reset button
2,press this using any pin with power
3,automatically restart
4,connect your router with pc
5,type 192.168.1.1 on the browser
username:admin
password:admin12 or admin
configure router
enable dhcp

hello,

Please do the following on the pc with the wired card not working:

Click on start, then hit RUN, then type in it: cmd

and hit enter.

in the prompt that you got, type: ping 127.0.0.1

If you get a successful reply in the form of the below text, then your network card is working, if not, then the network card is burnt from the thunder storm.

Successful reply sample:

Pinging 127.0.0.1 with 32 bytes of data:

Reply from 127.0.0.1: bytes=32 time<1ms TTL=128
Reply from 127.0.0.1: bytes=32 time<1ms TTL=128
Reply from 127.0.0.1: bytes=32 time<1ms TTL=128
Reply from 127.0.0.1: bytes=32 time<1ms TTL=128

Ping statistics for 127.0.0.1:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 0ms, Average = 0ms

This will give you a "Double NAT" setup. Meaning, Your D-Link router is connected to the external internet address assigned to you by your internet service provider. More than likely this is a DHCP address you do not control. Your D-Link router is then translating the address to the 192.168.1.x network. This is the first NAT translation. You are then connecting the ASUS router to DLINK, causing a second NAT translation. (Internet ADSL --> D-Link WAN Port --> D-Link Lan Port --> ASUS WAN Port --> ASUS Lan Port to computer/server/etc. ) If both of your routers are giving out DHCP addresses, then this is all that is required.

Hi!
Try this link this will give you a step by step guide on how to secure the wireless connection on your adsl gateway. click here.

all ADSL routers are very fussy when it comes to power fluctuations, even the tiniest can set them into error, first thing to try, is pull the power cord out of the back of the modem, wait a couple of minuteds, then plug it back it, give it a few moments to re-connect and see how it is, if no luck with that, check the DSL, or ADSL light is on and solid.. if so look on the bottom of the modem for an ip address, open internet explorer browser, type that ip address into the address bar and hit enter, it should prompt you for a username and password.. usually ADMIN for both user and pass.. then go to "status" or "diagnostics" depending on the modem, and it will give you a run down on any potential problem..

PPP error: username and password are wrong (Authentication Failure)