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Last Post
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Oct 14, 2008 10:03 PM
by: eksyt
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Posts:
5,043
Registered:
Oct 3, 2001
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Mac OS X 10.5.2 AirPort/D-Link DIR-625 802.11n workaround: drop to b/g
Posted:
Feb 13, 2008 7:43 PM
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A number of posters have reported difficulties connecting to their D-Link DIR-625 wireless routers after updating to Mac OS X 10.5.2.
Most of these same posters have reported that disabling 802.11n mode and using the router in 802.11b/g only mode restores connectivity.
This may be an incompatibility between D-Link's implementation of the 802.11n draft standard and Apple's implementation of a later version of the draft standard.
This post exists to document the workaround and as a suggestion to others having difficulties with other vendors' 802.11n routers to try the same workaround.
If you have success doing the same with another vendor's router, please reply below.
In the mean time, if you are an affected D-Link customer, you may want to contact D-Link customer service to inquire about the issue while Apple engineers investigate.
Quad 2.5 GHz G5, 5 GB | 2.33 GHz MBP C2D 2 GB
Mac OS X (10.5.2)
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Posts:
3
From:
Canada
Registered:
Feb 11, 2008
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Re: Mac OS X 10.5.2 AirPort/D-Link DIR-625 802.11n workaround: drop to b/g
Posted:
Feb 13, 2008 10:40 PM
in response to: William Kucharski
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I too found that dropping back to g restored my connection, however, after reading some of the other posts I tried a fix that gets N working again. Go into the settings for the router. Choose the "Advanced" tab at the top and then the "Advanced Wireless" at the left. Change the RTS Threshold to 2306 and the Fragmentation Threshold to 2306. Go to the "Setup" tab and then choose "Wireless Settings" at the left. Change back to "Mixed 802.11n, 802.11g, and 802.11b". Then choose "Save Settings". The router will reboot.
After performing this my Macbook connected again. This is with a D-Link Dir625 router.
Macbook
Mac OS X (10.5.2)
D-Link Dir 625 Router
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Posts:
6
From:
Washington, D.C.
Registered:
Oct 29, 2007
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Re: Mac OS X 10.5.2 AirPort/D-Link DIR-625 802.11n workaround: drop to b/g
Posted:
Feb 17, 2008 7:44 AM
in response to: Sermonator
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I can confirm that this fix works for me. I have the same DIR-625 Router and I'm using a MacBook Pro with 10.5.2
MacBook Pro 2.16 Core2Duo
Mac OS X (10.5)
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Posts:
33
Registered:
Jul 13, 2006
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Re: Mac OS X 10.5.2 AirPort/D-Link DIR-625 802.11n workaround: drop to b/g
Posted:
Feb 17, 2008 7:14 PM
in response to: William Kucharski
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Sorry for the silly question, but how do you disable 802.11n mode?
macbook
Mac OS X (10.5.2)
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Posts:
4
From:
Portland, OR
Registered:
Feb 19, 2008
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Re: Mac OS X 10.5.2 AirPort/D-Link DIR-625 802.11n workaround: drop to b/g
Posted:
Feb 19, 2008 7:38 PM
in response to: Micah Clemens
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It worked for me as well.
MacBook Pro
Mac OS X (10.5.2)
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Posts:
13
From:
Long Island, NY
Registered:
Oct 2, 2007
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Re: Mac OS X 10.5.2 AirPort/D-Link DIR-625 802.11n workaround: drop to b/g
Posted:
Feb 19, 2008 8:58 PM
in response to: Sermonator
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William,
You are a super stud and my hero!!!
Thank you for this solution. How in the world did you come up with it? Do you foresee needed to switch the thresholds back to the originals which for me we both 2346?
Thanks,
Marcantonio
PowerBook G4 & MacBook Pro X.5.2
Mac OS X (10.4.11)
also still running OS9-stop laughing...
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Posts:
4
Registered:
Sep 15, 2006
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Re: Mac OS X 10.5.2 AirPort/D-Link DIR-625 802.11n workaround: drop to b/g
Posted:
Feb 19, 2008 9:31 PM
in response to: William Kucharski
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hi after update i completely lost my internet connection. I have wireless connection before update,but then after update it just keep scanning but nothing coming up. I have no access to the router because it's from the school network and i NEED HELP.
thx...
Mac book pro 15"
Mac OS X (10.5.2)
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Posts:
11
Registered:
Oct 26, 2003
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Posts:
4
From:
Portland, OR
Registered:
Feb 19, 2008
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Re: Mac OS X 10.5.2 AirPort/D-Link DIR-625 802.11n workaround: drop to b/g
Posted:
Feb 20, 2008 9:57 AM
in response to: Guido79
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I have the DIR-625 H/W Version A2 which comes with 1.09 pre-installed. It still had the same problem starting with the 10.5.2 update. The solution posted above, manipulating the thresholds, fixed the symptoms for me.
MacBook Pro
Mac OS X (10.5.2)
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Posts:
7
Registered:
Jul 27, 2005
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Re: Mac OS X 10.5.2 AirPort/D-Link DIR-625 802.11n workaround: drop to b/g
Posted:
Feb 23, 2008 12:12 PM
in response to: William Kucharski
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I pulled my hair out about this same problem-- for several hours-- before finding this post. The work around worked perfectly for me, too. Now my MBP running Leopard is well-connected wirelessly to my DIR-625 router.
Thank you, very much.
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Posts:
1
From:
San Jose
Registered:
Aug 13, 2007
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Re: Mac OS X 10.5.2 AirPort/D-Link DIR-625 802.11n workaround: drop to b/g
Posted:
Mar 1, 2008 11:09 AM
in response to: William Kucharski
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Worked for me as well. Thank you! It's been driving me nuts the last couple of days.
Macbook Pro C2D
Mac OS X (10.5.2)
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Posts:
5
From:
Toronto
Registered:
Nov 12, 2007
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Re: Mac OS X 10.5.2 AirPort/D-Link DIR-625 802.11n workaround: drop to b/g
Posted:
Mar 10, 2008 8:30 PM
in response to: Sermonator
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You, my friend, are a hero and a saint. Another happy user after changing the threshold settings. Thank you!
MacBook Pro
Mac OS X (10.5.2)
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Posts:
1
From:
los angeles
Registered:
Apr 25, 2008
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Re: Mac OS X 10.5.2 AirPort/D-Link DIR-625 802.11n workaround: drop to b/g
Posted:
Apr 25, 2008 6:31 PM
in response to: William Kucharski
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i had to register just to say thank you.....i have a dlink dir 655 and i have been ing through **** with dropped connections....i finally got around to searching for a solution.....turning off n solved my probs.....thanks 
macbook pro
Mac OS X (10.5.2)
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Posts:
4
From:
Portland, OR
Registered:
Feb 19, 2008
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Re: Mac OS X 10.5.2 AirPort/D-Link DIR-625 802.11n workaround: drop to b/g
Posted:
Apr 25, 2008 11:20 PM
in response to: fargus9
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This really just fixes the problem at home. Now when I try to use Wifi anywhere else my laptop won't connect.
MacBook Pro
Mac OS X (10.5.2)
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Posts:
1
From:
Sweden
Registered:
Jun 10, 2008
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Re: Mac OS X 10.5.2 AirPort/D-Link DIR-625 802.11n workaround: drop to b/g
Posted:
Jun 10, 2008 1:42 PM
in response to: cutback
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I also had to register (what a hassle! Apple, you can do better than that...). No matter what, the fix worked like a charm on my D-Link DIR-635.
MacBook Pro 17''
Mac OS X (10.5.3)
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