Recently I have a problem. I'm running Windows 7 x64 on my desktop, my motherboard has 2 LAN ports, one connected to my school intranet (and internet subsequently), and the other connected to my brother's laptop (Windows 7 32-bit).
I enabled internet connection sharing @ my school LAN, to share it to my brother's computer. Recently two problems have surfaced:
1. My brother's computer would not be able to surf the internet after a while of internet usage (happens anytime between 15 minutes to 1 hour after first using the net). Current connections still continue (i.e. Youtube continues loading), but new connections (loading a webpage etc) can't be established. In this case I have to disable and reenable the internet connection sharing for the internet to work. I tried googling a lot but to no avail.
2. My computer is starting to get very slow DNS lookups; google.com takes 3 seconds to load (takes 0.1 second on my brother's computer). This happens in IE, Firefox and Chrome. I tried flushing the DNS, even changing to OpenDNS, but it still doesn't work. (This might not be related to ICS)
Anyone knows of solutions to such problems? Really appreciate it. Thank you!