Here is the article on XP. It is close enough to the newer Windows versions it should be close.
You need to check your wireless dhcp range. Check the wireless connection to see what ip you were issued. A lot of wireless routers use 192.168.0.x/24 for the wireless subnet, and that would cause a routing conflict in your laptop if the ethernet port is set to that also.
This subject may be a bit off topic for this forum tho.