Here are my findings:
I have been having similar problems with the AC7260 as everyone else when waking from sleep and powering on. The only way I could get wireless to work after a boot or after waking from sleep was to right click on the wireless icon in the systray>Open Network and Sharing Center>Change Adapter Settings: then right click on the AC7260 adapter and Disable/Enable. Once I did that it all seemed to work fine. I had to do this every time I booted or waking my laptop from sleet.
In an attempt to fix this I installed the latest drivers from the site v.17.1.0. This only made the situation worse. Now on boot the adapter was completely missing when I went to change adapter settings. I had to go into the device manager to find it and it had errors. I could then enable from here and it seemed to work. On boot I pulled these errors from the event log and thought it may help shed some light on what is going on:
NETwNb64: Intel(R) Dual Band Wireless-AC 7260 : Could not allocate the resources necessary for operation.
NETwNb64: Intel(R) Dual Band Wireless-AC 7260 : The version number is incorrect for this driver.
NDIS: Miniport Intel(R) Dual Band Wireless-AC 7260, {83079d22-ae82-4800-9a93-27739f60a4a4}, had event Fatal error: The miniport has failed a power transition to operational power
I travel all over the place with my laptop and routinely connect to about 3 or 4 different access points every week. The behavior is the same no matter where I connect. I tried reverting to 17.0.6 which one user said works. So far I am able to reconnect when I wake from sleep. Granted, I just installed this older driver so I will keep an eye on it and report back here.
Update 9/11/2014
I have successfully been connected after sleep a number of times with the 17.0.6 drivers but I still need to disable/enable the adapter on boot. It is in a perpetual state of "identifying the network". The second I disable and enable it connects just fine.