first check if he's getting an Ip address. hold ctrl + r then type "cmd". in the black box type in ipconfig and hit enter. you're looking for the IPv4 address. If it's 169.254.x.x then he isn't getting an IP from the router.
if this is the case, open the start menu, go to control panel, look for network and internet and then network and sharing center. on the right side look for "change adapter settings" - open that up - right click on the wireless adapter > properties > in the window that pops up scroll down and click on 'internet protocol version 4 (tcp/ipv4)' and then click properties.
Now here you need to input all the IP settings manually. select "use the following".
to get the valid IP settings you will need to check them on your PC first. on your pc, do the stuff I mentioned above. ctrl+r, cmd. but type in "ipconfig /all" instead. This will tell you what the subnet mask and default gateway is. the IP address needs to be the same except for whats after the last period. make it something close to what it shows for you.
once all the data is inputted, his OK. then try to get online.
now. if it IS getting an IP address then we need to know if there's any communication out through the router. in the same CMD window type in "ping
www.google.com" and hit enter. see if it responds 4 times. if it does then that means he is technically online. if it fails then we need to check DNS. you would then type "ping 74.125.228.98" - if this also fails then there's some kind of breakdown between this PC and the router. maybe compatibility. if it pings successfully then it's a DNS issue.
but we've gone plenty far already. let me know what you find.
