Windows 8 and 8.1 Forums


HELP! - New Asus PCE AC66 WiFi Card

  1. #1

    HELP! - New Asus PCE AC66 WiFi Card


    Well, I eventually got my new WiFi adapter (PCIE card - Asus AC66 adapter) and boy what a nightmare this thing is!
    It has taken hours of setting up, initially it wouldn't even "see" the network, despite all of the other PC's PS3 and TV's all happily connected.
    Numerous router (Linksys EA6700) reboots, and then some rather shaky connections, all of which are intermittent and keep forcing all the icons on the task bar to keep refreshing.
    Couldn't get anywhere using the ASUS software that came with the card, scan after scan it couldn't find the network.
    I have moved the card into each of the PCE slots, all three, and eventually got a bit of a connection on slot 1.
    My router is set up with two SSID's, one for 2.4GHz. (mixed mode) and the other for the 5GHz. AC only - which is set up for my PC only.

    Now when I eventually get the card to connect, it usually shows the connection speed as 1.3GBs, as it should, but withing a few seconds this drops to 840MBs. then down to 450Mbs, then it will drop to either 27MBs or 13Mbs and then sit there at that connection speed forever.

    All my other network cards adapters when connected (They are all currently disabled to allow only the ASUS to work on its own) always show there true full speed - WiFi n=300MBs, and my Gigabit LAN is at 1.0GB.

    Could this be a problem with the adapter? I tried sending a large zip file to the USB3 disk attached to the router - (about 700 MBs in size) it took about 1 minute, so it doesn't seem to be running as fast as it should.

    There is virtually no documentation with the card, very very poor, not even a list of specs. pretty shoddy ASUS!

    The motherboard I have is ASUS, P8Z77V Deluxe, so you would expect great compatibility.

    Anyone know if this is normal? Maybe some power saving feature? I found an update for the drivers on the ASUS support site, it has added a bit functionality and tidied the interface up a bit but the connection is always the same, sitting there at 13MBS....any help? This is driving me nuts!

      My System SpecsSystem Spec

  2. #2


    I have the same AC66 NIC working at 877.5 Mbps, which is 35 feet from my Asus AC66U which is set up as an access point.

    Which router are you using for this?

    You might not have very good luck with other AC type routers although firmware updates may help here.
      My System SpecsSystem Spec

  3. #3


    Posts : 132
    Windows 8.1 Pro WMC


    Check out the adapter properties in the Device Manager and you may find some options that you can set there. The AC66 does not work with Z87 motherboards but if your system specifications are correct that should not involve you. I would try replacing this adapter or maybe tell your supplier it does not work on your motherboard, so you need the PCE-AC68.

    You are right the ASUS documentation is lacking.
      My System SpecsSystem Spec

  4. #4


    Quote Originally Posted by chev65 View Post
    I have the same AC66 NIC working at 877.5 Mbps, which is 35 feet from my Asus AC66U which is set up as an access point.

    Which router are you using for this?

    You might not have very good luck with other AC type routers although firmware updates may help here.
    Linksys ea6700...almost 8 feet from the pc....19.5 mb/s!
      My System SpecsSystem Spec

  5. #5


    Quote Originally Posted by alkaufmann View Post
    Check out the adapter properties in the Device Manager and you may find some options that you can set there. The AC66 does not work with Z87 motherboards but if your system specifications are correct that should not involve you. I would try replacing this adapter or maybe tell your supplier it does not work on your motherboard, so you need the PCE-AC68.

    You are right the ASUS documentation is lacking.
    No options here...just waiting for an RMA! piece of junk!
      My System SpecsSystem Spec

  6. #6


    Posts : 132
    Windows 8.1 Pro WMC


    I installed the PCE-AC68 a few weeks ago before the Windows 8.1 upgrade and it was working great, connecting at 1300Mbps and I was getting great transfer rates. I just checked it now and it sounds just like your adapter with pitiful performance. Maybe ASUS needs to come out with a new driver for Windows 8.1.
      My System SpecsSystem Spec

  7. #7


    No Windows 8.1 drivers for the AC66 PCE, most likely this is the problem. I'm using it on Windows 7 so no problems there at all.

    I would also advise against using the Asus wireless connection utility as it's not working well with Windows 8.1.

    I would think Asus will release new drivers pretty soon.

    PCE-AC66 - Networking - ASUS
      My System SpecsSystem Spec

HELP! - New Asus PCE AC66 WiFi Card
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