Description of problem: kernel-2.6.35.13-93.fc14 is essentially unusable when using wifi (extremely slow speeds, in terms of bytes/second). Tested on an Fedora 14 x86_64 laptop with intel 4965 wifi. kernel-2.6.35.13-92 works fine until the module crashes and the system needs to be rebooted.
Matt, update consist from 3 small patches: Patch14000: iwlagn-fix-Received-BA-when-not-expected.patch Patch14001: iwlagn-use-cts-to-self-protection-on-5000-adapters-series.patch Patch14002: iwlwifi-add_ack_plpc_check-module-parameters.patch As far, I'm not seeing anything suspicious in any of them. Could you build kernel from source, revert this patch one by one and tell exactly which one is causing regression in your system.
If building kernel from source is difficult/time-consuming for you, perhaps you could build compat-wireless package i.e this one: http://wireless.kernel.org/download/compat-wireless-2.6/compat-wireless-2011-08-08.tar.bz2 It allow to install wireless drivers from upstream on older kernel (see README file). Then you can check if things works on upstream drivers. If not work, we then could patch compat-wireless code to debug this problem.
Matt, I'm closing bug with INSUFFICIENT_DATA resolution, reopen it if requested info will be available.