First off, if you could, fill out your system specs it would help some. If you go to the top of this page and click settings and then on the left side of the resultant window choose edit profile, scroll down and start filling out the information on your system, starting with the version of Win7 you're running including if it's 32 or 64 bit. You can try a simple full reboot of your network, by turning off your machine, then your router, then your ISP provided device, leave them off for a minute or two. Then reapply the power to your ISP's device, wait till it's steady green and locked, then your router again wait breifly and then your machine. You can also try a simple ipconfig /release and then ipconfig /renew from a command prompt and see if that helps.