Updating to 10.6.7 Destroy's WiFi...(Very High Latency)

Updating to 10.6.7 seems to have made my wireless connections useless. everything was fine at 10.6.6... After upgrading to 10.6.7 I noticed terrible latency and lag while playing an online game. I looked at the server list for the game and did a refresh, all the servers normally listing 30-90ms were now in the hundreds. 500ms...800ms...etc... I thought it was nothing.. tried basic troubleshooting steps and determined that it wasn't just the online game. I started looking at the connection.
Ping reply's online were returning very bad response times.. so I said OK, I'll ping the gateway here and see.. cause that I know I should be getting <1ms or slightly higher... it was also extremely high.. 345...800...750 etc....
After some more basic troubleshooting I determined that it had to be the recently installed OS update... finding no solution to the issue online I decided to do a backup and reinstall OS X.
I did a fresh install of OS X the network was back to normal... I downloaded 10.6.7 combo update and installed it... wireless was destroyed again...it has to be the update....
I did yet another fresh install of OS X.. this time I installed the 10.6.6 combo update and all the other software updates except for 10.6.7... the wireless is perfectly fine!
I am left with the only conclusion that the 10.6.7 update destroy's wifi from a latency standpoint.. making it useless to me for the most part.. even for basic surfing... I had no issues with connecting to the wireless.. just that it was basically useless after 10.6.7. I am on an iMac 24" Intel Core2 Duo model.
Anyone else having this issue or know a solution? For now I will just be leaving 10.6.7 alone.

Welcome to Apple Discussions!
10.6.7 does nothing to my WiFi latency. My suggestion is to check if your router's firmware is up to date, and known to be 10.6.7 compatible. Just because it is 10.6 to 10.6.6 compatible does not mean it is 10.6.7 compatible. I have Apple's airport extreme base station with 802.11n. Check also if you are proxies, or have certain firewall ports enabled on the System Preferences -> Security & Sharing that might interfere with the router's own firewall ports. If you have stated DNS numbers in Apple menu -> System preferences -> Network, make sure they are also stated on the router's own setup page, or remove DNS numbers from both, as those can contribute to latency under certain conditions. I have an iMac 5,1 and my WiFi is doing great, even when running a VPN over VirtualBox with Windows XP. Double check the games in question have been tested with 10.6.7. They may have their own configuration issues. If the game uses Flash, make sure the version of Adobe Flash you are using has been tested with 10.6.7 by contacting Adobe.

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Try the suggestions here to see if they resolve your problem:
http://support.apple.com/kb/ts1559
If those solutions don't work your iPhone 4s has probably developed a hardware problem. The permanent solution is to get it replaced.
You can search the internet for heating and freezing solutions that might work (at least for a while).
For example, see here: https://www.youtube.com/watch?v=nj10bz5bI6A
Root cause: On some iPhone 4s devices there may be a flow soldering problem with the WiFi chip. After long periods of WiFi activity such as installing an iOS update (for example, iOS 7 or iOS 8) there may be a connection failure. A work-around to this is the procedure in the youTube video.
A true hardware fix may be found here:
https://www.ifixit.com/Guide/How+to+Fix+iPhone+4S+Wi-Fi+Grayed+Out/22167

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My Arch install has been working fine for several months, but last week my network performance suddenly became extremely poor over wireless (this is a desktop with PCI wireless card installed). Wired connections still work fine. Other computers on our wireless network have not had any problems.
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My Arch install has been working fine for several months, but last week my network performance suddenly became extremely poor over wireless (this is a desktop with PCI wireless card installed). Wired connections still work fine. Other computers on our wireless network have not had any problems.
The problem is extremely high latency. If I ping google.com, I get numerous responses with times over 1000 ms, and often duplicates. Functionally, it causes websites to load slowly, and I often have to reload a site multiple times before it will fully load. If I'm signed into Google Chat, it will frquently report that I am disconnected, and then re-connect a few minutes later.
The primary indication of the problem is that I receive the following in errors.log:
Sep 12 11:53:21 localhost kernel: [ 776.679738] ath: Failed to stop TX DMA!
This message seems to be loosely correlated with connectivity problems, but not always. I also occasionally receive the following; it usually seems to be after the computer has gone into hibernation:
Sep 12 11:16:48 localhost kernel: [ 5584.707913] ath: Unable to reset hardware; reset status -5
Sep 12 11:16:49 localhost kernel: [ 5585.964084] ath: Unable to reset channel (2412 MHz), reset status -5
Sep 12 11:16:49 localhost kernel: [ 5585.964583] ath: Unable to set channel
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--- 192.168.1.1 ping statistics ---
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There are multiple possible reasons. Hosts aren't required to treat pings with utmost priority, so some of the variability could be just how busy the host is or there could also be congestion along the path, to name two possible issues.
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see the link above
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 Cheers, Tom

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