Can't reinstall wireless router

[mx5_girl]

I have a D-Link DSL-G604T wireless router which I use with a d-link usb dongle for my laptop. I broke the dongle and got a replacement d-link one. Had some trouble getting the router to work with new dongle so was told to uninstall all d-link software and reinstall. However, when I try to reinstall the wireless router I can't get it to work -the ADSL light on the router is not lit but stays flashing and during the set up it keeps getting 'stuck' after I input my isp username and password. It asks me to re confirm my isp. Can anyone help? I am getting internet access fine with a cable and modem (the adsl light is lit on it). I'm not very techy so if anyone can simply explain what the problem might be that would be great.

[mgmcc]

A Router isn't installed in a computer either as hardware or as software - it is a "network device" to which computers connect either by ethernet cable or "wirelessly" using TCP/IP Protocol.

After replacing the damaged USB Dongle, it should not have been necessary to make any changes to the Router. It should only have been necessary to "Connect" to it with the new Wireless Network Adapter (dongle).

Only if "MAC address filtering" had been enabled would you need to make changes in the Router's settings, in which case the new dongle's MAC address would need to be entered. As you've said you're "not very techy", it is extremely unlikely that this would be in use.

Best option is perhaps to perform a "hard reset" of the router back to factory default settings, connect to it with an ethernet cable, not "wirelessly", and then set it up again from scratch.

[mx5_girl]

Thanks for your reply. That is exactly what I tried to do - I restored my router to factor settings and tried to set it up from scratch using an ethernet cable. However as the ADSL light is not lit I can't progress with setting it up as I am getting a message 'dsl connection failed'. I can't understand why I can connect to the internet via a Sagem modem and cable but the router can't seem to connect.