Previous 1 16 17 18 19 20 Next 358 Replies Latest reply: Mar 1, 2014 10:21 PM by lfcitz Go to original post Branched to a new discussion.
  • JLMDVM Level 1 (0 points)

    I am referring to the wifi drop problem in mountain lion (ML)  I too am experiencing this issue and tried the original 'fixes' with no help.  Don't know if you have read the original post to put in context.


    some info extraneous to problem, but included in case makes a difference -- i.e. iMac i am using via wifi is running LION not Mountain Lion.  As you may be able to tell by the number of posts this is an issue for a number of folks re: wifi drops.


    hoping apple addresses problem soon and looking here for any other solutions to try --

  • jdcarpe3 Level 1 (0 points)

    I fixed my issue with the wireless drops.  It turns out that my access point had a beacon period set to 50 Kms.  I set the beacon period to 100 Kms and my drops have stopped. 


    Here are some details regarding what the beacon period is -- ce/cr11main.html#wp2448729.


    "Clients normally wake up each time a beacon is sent to check for pending packets. Longer beacon periods let the client sleep longer and preserve power. Shorter beacon periods reduce the delay in receiving packets."


    This is a more advanced change on your wireless access point/router, but it may be worth trying all the other suggested changes have failed to provide improvement.

  • Nikolaus Heger Level 1 (25 points)

    ^ setting the beacon period didn't help.


    Mne was already set to 100. then i set it to 200 and did the test by downloading a 1GB file in Safari. After 2 minutes the connection gets interrupted and the download fails - as usual.


    I also experimented with another router: Connected an Aiport Extreme. I tried various settings, NAT vs no NAT, 5Ghz network vs normal, all to no avail, file download would fail.


    I am using the iOS update file to test because that's how I noticed this in real life. I can't download an iOS update via iTunes, it always fails before it's done. Usually after 1-2 minutes but with the AirportExtreme I got all the way to 700MB before it died.


    Download link I use for testing is here:

    iPhone 5 (GSM) 6.1.2


    My workaround is to use a download manager - I've monitored my network speed (MenuMeters) and with the download manager the connection drops as well, but the download manager is able to continue the download and eventually downloads the whole file. The period when the network is actually dead is between 1 - 10 seconds.

  • SynthAL Level 1 (0 points)

    I'm reporting this problem now as well.  Only started happening a few days ago with it shutting off every few hours or so and having to restart but its gotten to the point where I cannot rely on it and have to rely on my ethernet.  Still hoping for a fix to this in the near future.

  • fwhofsteenge Level 1 (0 points)

    We all read this a thousand times. It does NOT help.

  • CT Level 6 (17,475 points)
  • fwhofsteenge Level 1 (0 points)


  • karenmom Level 1 (0 points)

    I've been an Apple user since 1984. I troubleshoot Mac products as a hobby. This is frustrating. iTunes struggles to find my devices no matter how many times I reboot my Mac devices, router, modem, or reset configurations, or do any of the zillion things that are suggested on this or any other thread, my WiFi just is not stable. Device plugged in or not, wifi on my iMac turned on or off, Ethernet or not...doesn't matter. No rhyme or reason for it. I give up syncing wirelessly until Apple can figure out a fix.

  • Csound1 Level 8 (46,340 points)

    fwhofsteenge wrote:


    We all read this a thousand times. It does NOT help.

    Have you tried deleting you existing WiFi connector and creating a new one, have you tried creating a new location?

  • dinosertovic Level 1 (0 points)

    Hi! I'm having the same wifi problem as many other users here. I have a mid 2010 iMac 27' that was running Snow Leopard until I decided to purchase and upgrade to Mountain Lion few days ago. Everything's good, but wifi. I sometimes turn on the computer and sometimes I have to do a small operation that fixes my connection, and sometimes it's connected right away. You never know.. sometimes it doesn't bother me for hours, and sometimes it disconnects in 30mins. So if anyone wants to know what I do to fix the connection, here it is:

    PREFERENCES -> NETWORK -> ASSIST ME -> DIAGNOSTICS -> select the location you usually use -> click continue and select your router (you know it's name I guess) and then just follow the process to the point where the system's gonna recognize and refresh your connection and there it is - your'e connected again. But as I said, that doesn't repair the problem forever. You actually need to do that everytime it disconnects.


    Anyhow, the reason I'm really posting this is because I'd like to know whether the LAN cable would solve the problem? You know what I mean, no wifi, no problem.. that's how I see it. So I'd like to know if anyone has tested that method already? I don't want to buy 7 meters of LAN cable to discover it doesn't solve the problem.


    I truly believe that some of the next updates will solve the wifi problem.


    Thanks for the answers in advance!

  • fwhofsteenge Level 1 (0 points)

    You are right: no wifi, no problem. Same wifi-problem here. Problem vanishes when you connect computer and router/modem with the good old ethernet cable. The wifi-problem still remains, but it won't bother you anymore.

  • dinosertovic Level 1 (0 points)

    Thanks man. I appreciate the fast answer.

  • karenmom Level 1 (0 points)

    It sounds as though it's Mountain Lion is experiencing problems across the board with WiFi. I have a brand new iMac running 10.8.2. The problem that I experience is with iTunes not recognizing my devices (iPhone 4S and iPad 3) via WiFi. I've talked to Apple on several occasions (including today) about the WiFi issue, but they don't seem to have a remedy for the problem. It's not stable. Sometimes iTunes recognizes my devices; sometimes it does not. As I've said before, I've updated firmware, software, hardware, rebooted and restarted everything. It's just not stable. I prefer to run my iMac via Ethenet since it is more stable and faster than WiFi, but that doesn't solve my problem with iTunes. So, if the WiFi problem is indeed with Mountain Lion, then Apple needs to get on the stick a create a fix and send us an update.

  • dinosertovic Level 1 (0 points)

    It s*cks man, so it's definitely ML that keeps making problems. 'Cause if a brand new iMac experiences troubles with wifi it can not be related to hardware. I'm kinda sure they'll fix the problem, I mean it's apple. I know their stuff is way to expensive to justife them for making a mistake, but it really is like that - mistakes happen. I seriously don't care about wifi if ethernet works. I'm buying a LAN cable tomorrow. =)

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