Yesterday I went into my D-Link router settings and noticed some of them did not display. I tried doing a reset to my Router and that's when all the trouble started. After rebooting the computer I noticed that it would not connect to the internet. So I tried unplugging the router and plug it back in but that did not work. I then unplugged the cable modem and back in but that did not work either. I thought well I have another wireless router that I should hook up since the wired one has been used for a long time but that would not connect me either. I went to my network settings and noticed that one of the items was no longer there. I cannot remember what it said. So I tried running the network wizard again and that did not help. I tried the find new hardware wizard and that did not help. I have gone into "Internet Protocol (TCP/IP) and tried both Obtain IP Address Automatically and "Use the following IP address" which I had put 192.168.0.1 and 255.255.255.0 as Subnet Mask and rebooted the system both times. I checked device manager and there is no conflicts. I plugged my LAN line direct to the modem and it works fine which is how I am able to type in this forum. I then tried to do a system restore but did not revert any network settings back. Today I was going to do a Windows repair but when it load the files and devices, my usb keyboard is not found or working.
I am at a loss of what to try next. I even tried using a different cable for the WAN connection. So here are the things I have. Windows XP PRO SP2. Dell Intel Core Duo 2 2.99 GHz with 2.95 GB RAM - under that it says Physical address Extension. My Router is a D-Link DL-604 and the other one i tried is a DL-514.
Any help would be extremely appreciated.

Things are pretty much messed up in your configuration. If settings have been changed by themselves, u should definitely check for viruses/malwares. As far as your UBS keyboard is concerned, if u face any other hardware problems, just recheck your ports, or reset your BIOS. IF u still face problems, try re-formatting your computer once ( save personal data at one place before u do so)

FOR ROUTER:-

Open the tool Hyperterminal as you are on XP, if u dont have it then download it by googling the term "Hyper terminal private edition"

Install and run it. Create a new connection, name it anything of ur choice, choose the protocol as "TCP/Winsock" and enter the router's IP ( router's default is 192.168.1.1, if u have not changed it) , port by default is 23.

Login into your router by providing the password. U would be presented with a list of options. First of all , change ur DNS server to that of opendns, select the appropriate option (number) for DNS server from the list >> change>> say "no" to automatic assigning of DNS>> enter Primary dns as 208.67.222.222 and secondary as 208.67.220.220

exit from that menu and "Save and Reboot" your router.

Open your network settings, enter the following data in there:-

IP address:- 192.168.1.2
Subnet mask- 255.255.255.0
Default Gateway- ( whatever the default Ip of ur router is)
Select "Use the following DNS server"
enter the default ip of your router in the "Preferred DNS server" like e.g. if the default router ip is 192.168.1.1 then enter this same thing in the preferred DNS server and leave the secondary DNS field blank.

Restart your computer and also reboot your router.

Check the web to find any new firmware updates for your router.

IF u still face problems with the router, maybe its time to get a new one.