I've been having problems with WiFi .
It keeps saying that it's out of range when I'm right next to it.
I have to restart my phone in order for it to see it's in range. Not only mine but the one I use at work and Starbucks.
Hope it's not the new update 4.4.3
Posted from Google Nexus 5
Re: Wi-Fi problems!
Try clearing the cache (through recovery) of the Nexus 5 then go back into Wi-Fi settings and make sure you save the Wi-Fi network you are joining.
Power off phone. Hold volume up+volume down+power button until the phone turns on with the words "start". Use the volume down button to select Recovery then power button to select. You'll see an Android with red exclamation mark. From here, press and hold power then volume up. When the recovery loads use volume down to select "Cache" and power to accept. Don't factory reset as that will erase the device.
Reboot then go into Wi-Fi settings, connect to the network and save it. See if that helps.
More information on getting into Recovery is available here: https://support.google.com/nexus/answer/4596836?hl=en