Wifi card not recognized after reboot.

I've got a Lenovo X140e and an Intel wifi card. (Intel Corporation Wireless-N 7260) that I installed myself, since the support for the Broadcom card it came with was spotty.
If I reboot my laptop, the card won't show up with either iwconfig or even lspci. If I do a cold reboot (power down entirely and start back up), it will show up just fine.
What gives?
Relevant lspci output:
01:00.0 Network controller: Intel Corporation Wireless 7260 (rev 4b)
Subsystem: Intel Corporation Wireless-N 7260
Flags: bus master, fast devsel, latency 0, IRQ 38
Memory at f1300000 (64-bit, non-prefetchable) [size=8K]
Capabilities: <access denied>
Kernel driver in use: iwlwifi
Kernel modules: iwlwifi

When the card is recognized, rfkill lists it as unblocked; when it's not recognized, it doesn't show up at all.
I've got i3 installed; for connection management I've been sort of trying different things - netctl never works but wifi-menu has been pretty reliable. I haven't installed any special power management stuff at all - I'm not really sure how to find out what was auto-installed?

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Attachments:
MAX NI-DAQmx issue.JPG ‏83 KB

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Here are answers to most of your questions:
Can you verify that the missing switch modules are always only the switch modules, or are other modules sometimes missing, too?
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