I think Dell have to fix Killer problem and everybody will be happy i am very sure about it..
My WiFi is connected to the network but something is preventing everything to run.I have had issues like this before (uninstalled the killer drivers and I reinstalled due to troubleshooting prompt) and troubleshooted them to get the WiFi to work but it is not working this time around. I cannot enter any site to download anything due to "no connection" did a full PC reset still having the same issues. I also when into the killer wireless in my devices and turned off save power mode. Don't know what to do. 
WiFi connected but is not working, I cannot download anything to fix.