Wifi working on some devices but not others

I will have those screenshots in a few days. I am out of town for work and don't have my laptop but I was able to download xirrus before I left.
I ran the xirrus connectivity test. These were the results:

DNS reachable: pass
Gateway reachable: pass
DNS lookup: no IP address returned. FAIL: DNS lookup fail
Internet reachable: FAIL: NO IP available

I will have screenshots and more info shortly but do those above results help at all?!
Just a reminder the internet works on my phone but not laptop or iPod.
Thank you for any help!