Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

Mac OS X 10.5.2 AirPort/D-Link DIR-625 802.11n workaround: drop to b/g

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)

Posted on Feb 13, 2008 7:43 PM

Reply
29 replies

Feb 13, 2008 10:40 PM in response to Dogcow-Moof

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.

Feb 20, 2008 9:10 AM in response to Dogcow-Moof

The D-Link DIR-625 RangeBooster N Router has both a Revision A and a Revision C version out in the wild. For rev. A, there are 5 different versions of firmware <http://www.dlink.com/products/support.asp?pid=501&pv=107&sec=0> with the latest being v. 1.09. For rev. C, there are 4 different versions of firmware <http://www.dlink.com/products/support.asp?pid=501&pv=108&sec=0> with the latest being v. 3.05.

It would be a good idea to check your router for the latest firmware revision. For more info, checkout D-Link's site: <http://www.dlink.com/products/support.asp?pid=501&sec=0#firmware>

Mac OS X 10.5.2 AirPort/D-Link DIR-625 802.11n workaround: drop to b/g

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple ID.