I assume you've tried the obvious- using a different cable to rule that out, another computer if possible, and turned off/disabled the wireless connection to the Netgear to make sure there isn't some sort of conflict there?
My router is an N66, but there's a section in the manual that refers to this problem (in the FAQs).
Main suggestions are basically (on the computer)
1) Ensure use of a proxy server is disabled
2) Ensure the computer obtains its IP address via DHCP
3) Ensure dial-up is disabled (I suspect it already is!)
Although not mentioned under this heading, performing a router reset shouldn't hurt- press the reset button for >5 seconds.
Edited by billford (Sun 28-Jul-13 04:42:55)