The latest NIGHTLIES for CM 11, and the latest f4ktion kernel, don't play nicely together.
The specific issue is that the data connection doesn't complete. I've filed a bug on JIRA  concerning this, since I thought it might be a regression.
The kernel from the latest SNAPSHOT (04-08-2014 AKA 20140804) works with the latest NIGHTLIES. I haven't looked at the specifics of why, but it's probably a missing/not loading kernel module, or different symbols.
According to the assignee, there were many changes between the last SNAPSHOT, and the NIGHTLIES after it.
I'll just add that I love this kernel, and I hope that you continue to work on this. Thanks.
 https: [slash] [slash] jira.cyanogenmod.org/browse/NIGHTLIES-68