I got my Intel ac7260 2 weeks ago and had alot of stability problems from the moment i installed it on my Acer aspire 5750G.I have a Netgear Nighthawk 7000 wich is a ac router but most of the time all i got was a crappy 10MB/s transferspeed to my nas or htpc.Sometimes after rebooting or reinstalling the ac7260 i had a 80MB/s transferspeed but that only lasted a few minutes.Yesterday i logged on to the nighthawk (wich is in bridgemode behind a adsl modem/router) and setup static ip's form my devices.I rebooted the nighthawk then my laptop and htpc and started testing.I gotta say setting up static ip's did the job and im finaly happy i bought the intel ac7260.
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Altough my transferspeeds look better and stable now if i look in status W7 say's wireless speed is max at 650 or 702 it keeps changing.
But it's almost never at 866,5Mbps.I have disabled bluetooth because W7 got laggy and slow on startup.I have driver v 17.1.0.19