The WiFi connection on my HP Stream11 has stopped working since I installed the updates that I received this morning. How do I undo the update or get the wifi working again?
Perhaps you miss to update wireless driver.
Run these two commands for wifi to work in Ubuntu.
wget http://archive.ubuntu.com/ubuntu/pool/restricted/b/bcmwl/bcmwl-kernel-source_22.214.171.1241+bdcom-0ubuntu1~1.3_amd64.deb sudo dpkg -i bcmwl-kernel-source_126.96.36.1991+bdcom-0ubuntu1~1.3_amd64.deb