Laptop/desktop and are you using wi-fi or a dedicated input from router.
would concur with alyoshka, if wi-fi it is not the router.
Currently only have win 8 on my laptop (about a year old) and I have had NO problems with connection at work nor public access (ie Doctors office, Bowling center). AT home my router and Cable modum are quite old and I also have no problems.
If the "belkins" refers to a USB wireless adaptor, then have you checked Belkins website for a Windows 8 driver.
If the driver is loaded try "Right hand click the exe. for the driver and run it under windows 7 compatibility mode"
If not loaded then as mcnupty23 suggested try the windows 7 driver - Bu install using windows 7 compatability