For what it's worth guys - we've been experiencing these same issues in Linux for months. Sadly when it comes to the Intel drivers there, it's either Intel's way or the highway. Since these issues rendered my Linux install unusable at client sites, I was forced to transition back to Windows 8. Luckily I only install driver updates when required so I stuck with the MS Intel wireless drivers. So based on this thread I dodged a bullet there for my Centrino Advanced-N 6235.
In any event I've decided to transition away from Intel's wireless hardware These issues have been allowed to continue for far too long both on the Linux and the Windows side. I'll be receiving the following Linux compatible component in the mail tomorrow:
WPEA-251N(BT) - 802.11n Wi-Fi + Bluetooth Half Mini Card with Atheros AR9462, WB222
So yeah after years of using Intel hardware nearly exclusively because they were the best - I've decided to move on. At least in regards to wireless adapters. I would suggest you all consider doing the same. However be aware that some laptop manufacturers will lock down the type of wireless adapters you can install on a laptop via the bios. Thankfully mine does not.