Router issue

So just today I noticed my wifi wasn't working. On my phone it shows the radio signal but says no internet connection. I can however connect on my computer and what not that is plugged in via ethernet. (yes I pulled wires through my walls back in the day and they still work great) 
So I have an internet connection its just not being sent out the radio signal. Any ideas?

No way for us to say really. Here's a super generic list of what I'd try:

1 - Reboot
2 - Verify wireless is on (check for a button that disables it, then check GUI)
3 - Try another device (if possible)
4 - If another device works (or isn't available), completely forget the connection from your phone, then re-add it.
5 - Google your router make/model + 'wireless not working', attempt any fixes found
6 - Either call manufacturer support or replace

Thank you Atrum. Ended up being some type of conflict with my phone. Other devices worked fine. Forgetting the network didn’t work. After I restarted my phone did it work.