Windows 8 and 8.1 Forums

After 8.1 Update Wi-fi Dropping Connection

  1. #11

    Posts : 2
    Windows 8.1

    Quote Originally Posted by josefresco View Post
    Thanks pistol44 for the thread link. Your wifi card is actually the Broadcom, the Killer Wireless card is for your wired Ethernet. Like you I called Dell and they told me the same thing: the latest drivers are from June/August and the most recent drivers are hosted on the Lenovo site (which I haven't tried)

    To recap (I still have this problem)

    1. I tried both disabling and uninstalling the Broadcom card.
    2. I tried disabling 802.11a (didn't have an effect)
    3. I tried disabling WMM (waiting to see)

    The symptoms seem random (even when parked right next to my router), and if I leave the connection alone after it disconnects, it eventually (after a few minutes) reconnects. If I attempt to reconnect immediately, it does not work. I have to give it at least 30-45 seconds to attempt a re-connect.

    So far so good on disabling WMM (no drops after 10 min of streaming CNN), although I'm not even sure what that is so it makes me nervous not running it. I'll do some research and post it here.

    WMM Wiki: Wireless Multimedia Extensions - Wikipedia, the free encyclopedia
    Since my last posting I've managed to resolve my problem. I posted my resolution on my other thread that I linked to above. You can give it a go and see if it works for you

      My System SpecsSystem Spec

  2. #12

    Posts : 9
    Windows 8.1 Pro

    Since disabling WMM on the Broadcom BCM4352 wireless card the situation seemed to improve. But after some heavy (normal) usage, I noticed the connection dropped again. I'm trying the Lenovo drivers available here: Broadcom Bluetooth BCM4352 Driver for Windows 8.1 (64-bit) - ThinkCentre Systems

    I'll update this thread with my findings.
      My System SpecsSystem Spec

  3. #13

    Posts : 9
    Windows 8.1 Pro

    Lenovo drivers did nothing to help my problem. I installed them and have since lost my connection more than a dozen times.

    This morning I bought some software on Amazon, and their downloader caused the connection to drop every 5-10MB by far the worse it's been since I upgraded first.

    The performance seems very random, as I was able to update a Steam game with only 1 interruption yesterday.

    What are my options here? Should I try completely removing the adapter again and start over? What's the best way to approach this?

    To recap; I have a Broadcom BCM4352 adapter and am running Windows 8.1 Pro 64-bit. Wi-fi problems started after the upgrade from 8.0 to 8.1 Brand new Alienware 17 machine. Tried Dell drivers from August, and most recently Lenovo drivers posted October 1st. I tried disabling WMM, which seemed to help, but not solve the issue.

    I have many devices (Windows, iOS, Android) successfully using my wi-fi so it's not a router issue.
      My System SpecsSystem Spec

  4. #14

    Here is a link to the Dell drivers that references the Alienware notebook.

    If you are using the 5Ghz connection and are trying to go through walls that won't work very well at all and you should be using the 2.4Ghz radio for that. I've done extensive testing with the new wireless ac devices.

    Which dual band router are you using for this?

    Driver Details | Dell US
      My System SpecsSystem Spec

  5. #15

    Posts : 9
    Windows 8.1 Pro

    Thanks chev65 for the link. For some reason that did not turn up while searching, the only version from Dell I could find was from June.

    I actually found different Lenovo drivers (on the German site of all places) on Sunday and installed those which *seemed* to have helped. This is my first full workday with this computer and with these drivers so I'll know by the end of today if they have worked.

    I'm not going to install the drivers from Dell if these stay solid, but at least this thread will help others find the correct drivers either from Lenovo or Dell.

    FYI I contacted Broadcom directly to see if they could provide me with help, and here was their rather unhelpful response:

    Broadcom offers support for its BCM57xx and BCM4401 wired Ethernet controller products only. Broadcom is currently not supporting Non-Ethernet NIC Products directly.Since we do not sell products directly to end-users, we do not offer comprehensive support for Broadcom's customers' products.If you are having a problem with a Non-Ethernet NIC product, please contact either the PC OEM or product manufacturer for technical support.
    The kicker is that Dell doesn't support it either, because the machine shipped with 8.0. Dell told me to call Microsoft.

    I think I might conference Dell, Microsoft and Broadcom's support teams and make them have a deny & deflect party.
      My System SpecsSystem Spec

  6. #16

    Posts : 9
    Windows 8.1 Pro

    Thought I had this licked, as I was able to work all day yesterday with no drops. Working for me means web browsing, limited FTP, IM, streaming Sirius, etc.

    However come afternoon I browsed over to some video streaming sites (to rename nameless), and once again my connection dropped again.... and again... and again.

    I then tried to replicate the issue by loading up 10+ YouTube tabs and low and behold, no drops.

    Browse to another "tube" site and bam, connection drops.

    I don't know what this means. If it's the type of streaming, or if it's related to the time of day/network activity.

    It seems certain apps/needs cause more issues than others.

    Regarding my router... I'm less than 5 feet from it, and it's a Linksys WRT54G2 firmware version 1.0.01 Wireless channel is 6 running at 2.437 Ghz Security is WPA personal/TKIP
      My System SpecsSystem Spec

  7. #17

    I would think about trying another firmware for the router. Linksys is showing 1.5.02 firmware dated 3/19/2012 but it's for the version 1.5 router, this may be worth a try. Depending on the routers version number there is also DD-WRT firmware which is supposed to fix many issues.
    Router Database |

    WRT54G2 Support | Wireless-G BroadBand Router

    I should also point out that wireless drivers for Windows 8.1 are set up to use WPA personal with AES encryption, TKIP is an outdated encryption which may not work very well.

    A wireless G router may not be ideal here where a newer N router would probably work better.
      My System SpecsSystem Spec

  8. #18

    Hi guys. Ive been battling with this for the last few days (even bought a different wifi adapter...) i read all the forum i could find and tried absolutely everything with no success... and then i was in my router settings and i tried to reset the gateway...and voila the problem went away! im downloading streaming videos and playing online with no problem. Hope this helps.
      My System SpecsSystem Spec

  9. #19

    Posts : 1
    windows 10

    Hey I am having an issue with my killer double shot pro option not showing in the network manager can any one help me with that??
      My System SpecsSystem Spec

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After 8.1 Update Wi-fi Dropping Connection

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