Question WiFi Stuck On

Tried searching for this but can't seem to find anything similar. I did think it was down to this camera bug but I don't think it is...

Basically, in the last few days, my Nexus thinks the WiFi is on when I've not used it in weeks. This is based on the battery stats in the Settings menu. It's killing my battery, like 10% in less than an hour, and this is also the same on a fresh install of the factory image with now other apps installed.

Anyone know what's going on, or what to suggest?
Google Nexus 5 D821 (Black) 32GB
ROM: Android 4.4.4 (KTU84P) | Bootloader: HHZ11K | Recovery: Stock | Radio: | Kernel: Stock

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