Created attachment 913778 [details] Excerpt from journalctl, grepping for "kernel" and "NetworkManager", from the time I booted the new kernel until right before I tried manually restarting the wifi connection (that didn't help) I installed kernel-3.14.9-200.fc20.x86_64 today, and after doing so I'm experiencing netork problems I don't see with kernel-3.14.8-200.fc20.x86_64. I don't lose network entirely, but most network operations (DNS, IMAP, traceroute) fail or take an unusually long time. It's as if I'm experiencing extreme packet loss, but it's clearly not the network because other users of the network (and me if I'm running the older kernel) are not having any problems. I'm running on a MacBook Air.
*********** MASS BUG UPDATE ************** We apologize for the inconvenience. There is a large number of bugs to go through and several of them have gone stale. Due to this, we are doing a mass bug update across all of the Fedora 20 kernel bugs. Fedora 20 has now been rebased to 3.17.2-200.fc20. Please test this kernel update (or newer) and let us know if you issue has been resolved or if it is still present with the newer kernel. If you have moved on to Fedora 21, and are still experiencing this issue, please change the version to Fedora 21. If you experience different issues, please open a new bug report for those.
This bug is being closed with INSUFFICIENT_DATA as there has not been a response in over 3 weeks. If you are still experiencing this issue, please reopen and attach the relevant data from the latest kernel you are running and any data that might have been requested previously.
For the record, newer kernels did not have this problem.