In case the following info is useful:

Operating System: Win2K Pro with Service Pack 4
Browser: IE 6
ISP: Insight Communications
Modem: Motorola SB5100
Router: Netgear RP 614v2
Ethernet Card: 3COM 3CR990-TX-97

My cable broadband connection keeps on dropping whenever I visit http://sports.yahoo.com/

After I visit this site I cannot surf other pages even if they are on other domains. And the only way I can restore the connection is to reboot the system. releasing and renewing the DHCP using ipconfig /release and /renew does not work.

What could be the reason? In fact I am able to post this message only after rebooting the system after another unsucessful attempt to browse that yahoo subdomain. As long as I do not visit that subdomain everything is fine.

Please advise!

Read all about it here:
http://www.dslreports.com/forum/remark,9003438~mode=flat~start=40

Change your MTU to 1472 and perhaps a Firmware-update of your Netgear-router should fix it.

I would think MTU 1492 is better
what about TcpWindowSize
mines 30440 dsl reports
maybe you can get a router firmware update
my MTU is set in the reg and in my router