My computer can't connect to DHCP

I have a wireless connection to my BT Voyager 2091 Wireless ADSL Router on Windows XP Professional SP1, and everything was working fine until suddenly, my computer wouldn't connect. I later discovered that there was no default gateway because my computer was failing to connect to DHCP. I tried scanning for viruses, spyware and even got a tool that would repair files associated with TCP/IP connections but still no luck.

Has anybody any idea what to do?

Please help.

Thanks!

I didn't find the right solution from the Internet.

References www.techadvisor.co.uk/forum/helproom-1/my-computer-cant-connect-dhcp-224457/

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