Need more information.
Everyone is affected by your comp connection? Does your windows 7 work on the internet. What kind of router / modem. Your comp should not affect other users with their internet experience.
We have a very small LAN. 6 laptops connected to an SMC router, which is connected to our ISP (Telus in Canada) wireless modem/router.
Yes, the Windows 7 laptop has Internet access via hardwire and via wireless. But when using its hardwire connection none of us have access to the internet. There seems to be a DNS related conflict.
We all have to be on wireless in order to have internet access now.
Thanks for your help.