OS X El Capitan: Connected to Wi-Fi / Personal Hotspot network but not connected to Internet I recently updated to El Capitan. 

But now when connection is established with my college's Wi-Fi network I am unable to use internet. Same goes for Personal Hotspots.

Everything was working fine in Yosemite.

How can I fix this?
Try setting a new network location. Network Preferences/edit top drop down/new location/apply If that doesn't work you may need to reinstall OS to resolve software issue.