Computer will connect to ATT Wireless Router but does not have internet access

We can help that computer to get back online, russthom1.

Depending on what operating system that your computer is using, there are steps that you can take to restore the internet access. Here they are: 

If you are using Windows 10 or above: 

1. On the far right-hand side of the task bar, you should see an icon that looks like a window with a small crescent moon on it. Click there. 
2. Click on Network.
3. The network list should come up. Find the AT&T Network Name and Click on disconnect.
4. Close everything down and power the comouter down. Do not reboot or restart. 
5. Wait for about 30 seconds back and then power the computer back on. 
6. Once the computer loads up, go back to the same symbol mention in step 1.
7. Click on Network.
8. Find the AT&T Network , and if it hasn't automaticly connected, then press connect.
9. Test by going to att.com
10. If you are able to get there, then you are resolved.

If you are still not able to get online, then there might be a problem with your wireless network card. You will need to get that computer repaired. 

The steps above are for users with windows. If you have a Apple Product, then you will need to contact Apple support for assitance. 

Please update if you are able to get back online on the computer. 

Thank you for using the AT&T Community Forums.

Matthew, AT&T Community Specialist

FWIW, I have what appears to be the same issue and I still have data flowing despite windows 10 showing 'no internet access'on ethernet connection. I've just downloaded a game on steam (29gb, re2 remake) with no problem at all. I'm gonna go ahead and say it's probably an issue with windows or certain devices maybe just not assigning IP's properly. 

WIndows 10 says "No Internet Access" if it cannot successfully connect to a server that it references by a DNS name.  So if that name doesn't translate, or that server is down, or there's  a problem that affects that particular route, or a firewall blocking that traffic, then "No Internet Access."  It might mean that, but there are other things it might mean.