Dhcp is not updating dns
(See step 8)If you determined that you might have an IP addressing issue, this step is for you.
If your router is an A router, then you need to get a wireless NIC that supports 2.4 and 5 GHz networks.Is your computer able to connect to other networks, and just not this one network?If so, it probably proves that there are not any hardware issues present on your computer (unless you are trying to connect to a 5GHz network with a 2.4GHz network adapter... Are other computers able to connect to this network?I can't tell you how many times I have gone to troubleshoot a network and they just have something unplugged, or didn't bother to reboot their router.(This is especially common with my parents...)The first thing you should do when troubleshooting your network is to take a step back and think about the facts you already know about the problem you are having.Due to a recent demand for help with home networks, I have decided to write this instructable on how to troubleshoot your home network.
If you are not already familiar with the basics of how your network works, I suggest reading my previous instructable "How your home network works".
Many times your router will have a built in DNS server, however; the built in DNS server can be spotty at best.
I generally recommend that if you keep your current DNS server, that you also add Google's DNS servers to your list.
Please note that if you use Open DNS or another web filter that requires you to use their DNS servers, this could shut off the filtering, or in some cases impact your ability to access the internet. If there are other computers on your network, be sure and check their IP addresses to make sure you will not have an addressing conflict.
If they have addresses below 100, I suggest using addresses higher than 100 and visa-versa.
If your computer connects to other wireless networks, and you have verified that you have the correct frequencies, then more than likely it is not a hardware issue.