Hi,
i don't won't to hijack this thread, but i have a simmilar situation with my AC 7260 in my Lenovo E130. In Windows 7 x64 after sleep my card won't power up. No chance to get it to work. Only a reboot helps. In Windows 8.1 x64 the sleep and wakeup is working.
In Windows 7 x64 tried many SW versions of Intel Proset and driver, but no luck. The settings in adapter setting for power saving you mentioned above, doesn't help.
If you need some debug info's i can help you, hopefully this can be fixed. New installion fo WIN 7 was done, and nothing helped.
Thanks,
regards
Herbert