When my son tries to access Google through my home network he is told 'site blocked by Netgear' though Google is not one of the blocked sites. It has started doing this for some reason - it also does it to my laptop (though I can still access Google). Since it doesn't appear on the list of banned sites, how can I stop Netgear doing it?
If my version of my netgear DG834G is v2, can I update the firmware to version 3 or 4. There's something on the website which implies you cannot. Anyway, I installed v3.01.38 and it hasn't made any difference. I did discover that my son's PC had 150 viruses and spyware infections on it which I have now removed but the firewall is still blocking Google. Someone on the netgear forum suggested re-installing the router software but I'm not sure which version of the firmware I can use.
Your hosts file may have been altered by spyware as brundle says. It is highly unlikely that your router is blocking Google. It is more likely that some spyware is redirecting your browser to a bad website and the router is blocking that. Download and update Spybot Search and Destroy from safer-networking.org click here and apply Immunisation. When thats done reboot in to Safe Mode and run the scan.