Previous 1 2 3 4 Next 48 Replies Latest reply: Dec 22, 2010 12:40 PM by alexmartins Go to original post
  • mjvdvlugt Level 1 Level 1 (0 points)
    I got some other weird issues too, non-functioning Function keys (Volume up/down, brightness) and crashing System Preferences. Did some Googling and found a possible relation to VMware fusion.

    So I deinstalled VMware (I use Parallels most of the time anyway now..) and rebooted. Somehow the buttons started working again and I can even turn on Back To My Mac again without clogging up the system!

    Maybe this helps some of you too..
  • ktheman Level 1 Level 1 (0 points)
    Thank you very much for the suggestion.. I have an old version of Parallels installed (v.5), and un-installing that seems to have solved all the problems.

    Thanks again!
  • DrVenture Level 2 Level 2 (180 points)
    Ok let’s try to get the bottom of some of these issues.

    Understand that when the 10.6.5 update went out, *most likely* the drivers for your AirPort card in your Mac have been updated. Sometime when drivers/supplicants are upgraded some APs may or may not like the change. Expecting Apple to test every combo of home AP / Mac out there is unrealistic. So, let’s try to do some digging ourselves!

    **Please post the results of all commands and questions!**

    Lets look at what kind of Mac you have: Open a terminal and do: sudo sysctl hw.model
    Next lets some info from AirPort. Connect your mac to your wireless network (if you can =) ) and open System Profiler (in utilities). Click on AirPort on the left hand side and copy and paste the entire right hand pane text. This will help should your Driver version, How networks are around some of your connection details.
    Now lets get some info about your router/AP. Copy reply to this post with the ALL of the following info. Manufacturer, FCCID, Model Number, Revision Number, and Firmware that your router/AP is running. With this information you can look up the EXACT type of chipset your AP is using. Please be sure you are running the latest and greatest firmware from your router/AP.
    What kind of wireless security are you using? Yes, a lot of this information can be gleaned from step 2. However, some can’t. Are you using a Hidden (Non Broadcasting wireless) network? Are you trying to do WEP TSN? Remember 802.11N and WEP security is a no no. In order to get 802.11 speeds the 802.11N spec says you MUST use WPA2/AES or Open/no encryption!!!

    Let’s start here and see what we can find.

    Message was edited by: DrVenture
  • wifiguru Level 2 Level 2 (235 points)
    What network security are you using ?
  • wifiguru Level 2 Level 2 (235 points)
    Did you try upgrading your security to WPA2 ? WEP is a very insecure method for wireless security.
  • wifiguru Level 2 Level 2 (235 points)
    This could be why:

    Here is an article I found for people who are complaining about noticing max. 54 Mbps after installing this update. The details in this article might explain it

    http://support.apple.com/kb/TS3361
  • wdcarter Level 1 Level 1 (0 points)
    I upgraded to 10.6.5 this evening and immediately upon restart my AirPort connection was broken. I tried manually connecting to my network (802.11n-only), but to no avail. The only thing that worked was changing the network type to 802.11b/g/n. Then I came across a few troubleshooting articles so I turned AirPort off and then on, I updated my router (Belkin) firmware, I restarted the router, reset the SMC, and I even changed the network key. Then I found this article and decided to change my security from WEP to WPA2 Personal and voila, my Wireless-N connection is back! *** Apple, so many people are having this issue, you could tell us what's going on!! My i7 iMac seems unaffected, but then again, I have it connected via ethernet and not wireless.
  • DrVenture Level 2 Level 2 (180 points)
    802.11N+WEP is 802.11N spec violation. The only allowed security types in the 802.11N spec are Open No Encryption and WPA2. I would guess, WEP support for 802.11N was pulled in 10.6.5 to align with the 802.11N spec.

    Maybe its time you get an up to date access point that follows the 802.11N spec.
  • keyag Level 1 Level 1 (0 points)
    I have similar problem but when I try to add a printer my wireless canon MP560 does not show up/be recognized even tho it is sitting on the desk next to my iMac & router.

    Message was edited by: keyag
  • wdcarter Level 1 Level 1 (0 points)
    "802.11N+WEP is 802.11N spec violation. The only allowed security types in the 802.11N spec are Open No Encryption and WPA2. I would guess, WEP support for 802.11N was pulled in 10.6.5 to align with the 802.11N spec.

    Maybe its time you get an up to date access point that follows the 802.11N spec."

    I understand your point, but this "violation" is allowed by the overwhelming majority of 802.11n routers and therefore the router manufacturers themselves are to blame, no? The average user, even technically-inclined users, may and probably are not aware that WEP on a 802.11n connection is a "violation" of the spec. Heck, I've been using WEP with my 802.11n router for many, many months now and never had any problems at all...until the 10.6.5 update. If Apple's going to make a change like this that will cause the "average user" (a user that likely has no idea what 802.11x is, let alone the difference between WEP, WPA, etc.), they need to communicate this so that those same users aren't stuck with non-functioning wireless connections.
  • DrVenture Level 2 Level 2 (180 points)
    "but this "violation" is allowed by the overwhelming majority of 802.11n routers and therefore the router manufacturers themselves are to blame, no"

    Yes, actually they are.

    There is a reason the IEEE spec exists. If everyone followed the spec, then interop issues would be quite small. But that is for another discussion.

    As for your complaint that Apple should communicate when something is added/removed/improved that is not a Major feature, then I would agree.
  • DrVenture Level 2 Level 2 (180 points)
    Keyag,

    So does you Mac have any problems accessing the Internet or your local network? If not, then this does not sound like a 10.6.5 wireless issue.

    Have you tried resetting your printer? Does it have the latest software/firmware? Have you tried reinstalling the software on your Mac? Can you go into your router and see if the Printer is associated?
  • Peter S. Level 1 Level 1 (40 points)
    think i got it......disable use wide channels box

    Message was edited by: Peter S.
  • DrVenture Level 2 Level 2 (180 points)
    Peter S.

    If you are using 2.4GHz 802.11N, then you should NOT use HT40 (wide channels). HT40 in 2.4GHz can and will cause interference and coexistance issues in the 2.4GHz band.

    If you are using 5GHz, then HT40 should be fine.
  • simon hassin Level 1 Level 1 (5 points)
    Many thanks to DrVenture for his helpful hints. Changing security to WPA2/AES worked for me.