Network connection extremely slow after snow leopard upgrade

I should first state that my son's new Intel Mac Mini (2009 model) is working fine without any issues - it is on the "n" band. My wife's macbook (on Leopard) and my Thinkpad are continuing to work fine - both connecting to the "g" band of my Simultaneous Dual band AEBS.

On my 2008 model mac mini, the installation went thru fine, but the network connection is extremely slow - it is connecting using the "g" band. Even when I launch the Airport utility, it takes a while to locate the AEBS and then when I click on "Manual Setup", it takes a very very long time to read the configuration. This tells me that the airport interface on the mac mini has some driver issue.

I tried all the suggestions given in other threads (listed below), but none of them worked.

1. Created a new network location and rebooted
2. Trashed the com.apple.airport.airportutility.plist and rebooted
3. Rebooted countless number of times - illogical, but that kicks in when I can't find a solution.

It is past midnight here (20miles from Apple headquarter). Going to wait for another 30minutes. After that, I will use SuperDuper to install my Leopard back on my mac mini which I had cloned before starting the installation.

Appreciate any suggestions - I am open to any prayer solution as well! If not, the Snow Leopard family pack is going back to the Apple store on Monday.

Just saw at engadget: "On a 17-inch unibody we were putting through the paces, the WiFi inexplicably has gone out and we have yet to get it working again."

Message was edited by: new2appletv

2xMac Mini 2Ghz(old+new); iPhone 3G 16GB; Apple TV 40GB, Mac OS X (10.5.6), 750GBSeagateFreeagentProFirewire4data; 1TB USB 4Backups; iLife09

Posted on Aug 29, 2009 12:21 AM

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27 replies

Aug 29, 2009 9:37 PM in response to mediacore

Scanned all the threads discussing various networking issues, tried all the suggestions - none of them helped. I rebooted from my cloned drive which had the 10.5.8 and I was able to access the network without any issues. As soon as I reboot from the system drive which has snow leopard, I have the slow network issue. That proves that the mac mini, my router, home network, ISP connections are all working fine. It is the stupid snow leopard installation. I am not going to do a "clean install" as I have to reload all my apps and reconfigure them.

I restored leopard back from the clone drive and everything is fine now. I am returning back snow leopard until some passage of time. Apple is no better than any other software company which uses paying customers to test their products. I had more trust on Apple which was misplaced!

Aug 30, 2009 7:24 PM in response to new2appletv

I am having connection problems also. I usually can connect once and all is well. Then it drops the connection, showing due to inactivity in the logs, and then I can not reconnect. The AP no longer shows up in the list and manually trying to connect just times out.

I am running an original Macbook Pro connecting to an original airport extreme using 802.11A. No problems before the upgrade to 10.6

Sep 1, 2009 10:01 PM in response to new2appletv

Some more info about my setup:

*Simultaneous Dual band AEBS:*
Radio Mode: 802.11n only (5 GHz) - 802.11b/g
Radio Channel Selection: Manual - 161 (5GHz), 6(2.4GHz)

*Airport Express:*
Wireless mode: Extend a wireless network
Allow wireless clients checked under the name of the network (same as for AEBS).

Both are WPA/WPA2 Personal security. And both the routers were upgraded to 7.4.2 firmware this morning with the hope that it will help.

*N Devices (both working fine):*
Apple TV 40GB
2009 Model Mac Mini upgraded to Snow Leopard - working perfectly.

*G Devices:*
Thinkpad running WinXP
Dell Laptop running WinXP
Acer Netbook running WinXP
iPod Touch
iPhone 3G
Linksys webcam
_All of the above are working fine_.
+2008 model Mac mini -+ upgrade to Snow Leopard shows extremely slow wifi connection that it is unusable. It takes 20min to load apple homepage. When I boot from the clone of my Leopard lying on my external drive, it works perfectly.

I compared the settings between all the tabs of Network-->Airport-->Advanced and they are identical between Snow Leopard and Leopard mode except that SL doesn't have the "Apple Talk" tab.

Appreciate any help to debug this.

Sep 3, 2009 4:15 AM in response to new2appletv

Until today, I had installed SL on my problematic mac mini twice - but both the times, it was an upgrade from Leopard. Today, I created a new partition on the drive and did a clean install of SL. I also disconnected the AE that was doing wireless extension. After the basic installation, the networking seemed to be OK. After that I installed iLife'09. It asked me to register the software after the installation and it couldn't load the webpage! I installed Airport Utility which went fine and it couldn't load the device configurations. Both are exactly the same symptoms that I was getting earlier.

I did the usual CPR - renew DHCP, create a new network location, yada yada yada...

If the networking was bad, it would have been caught by the minimalistic testing most software teams conduct. This is a typical software bug that only reliability and many cycles of compatibility testing can catch <Edited by Host>

Message was edited by: new2appletv

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Network connection extremely slow after snow leopard upgrade

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