Leopard Speed Decrease?

Hi,
Have an APn. Haven't changed any settings on AP, but after installing leopard I can't break 11mbps.
I usual get 16-18Mbps via airport but no dice.
This is the weird part: If I plug my computer into the base station via ethernet I get normal speeds, but once I try using wireless it drops back down.
Multicast is set at 11, Channel Auto(but tried a few for measure), Robustness off, What gives? Is this a bug in leopard?

If someone out there can test a similar setup for me I would appreciate it.
Using a
1. G5 Dual 2.5 (10.5.1) with an Airport Extreme a/b/g card (using G).(it is the only client on network)
2. Airport Extreme N Base Station with g compatible band.
3. Cable Connection of 20Mbps down/2.5 Mbps up
4. Using: http://ma.speedtest.rcn.net/ to confirm speeds(although you have to be an RCN subscriber) any respectable speed test will do.
5. Try wireless and record speeds (mine hasn't broken 11Mbps, (although it is ranging from 4-9 on average)
6. Plug in Computer directly to base station via ethernet and record speeds. (I'm getting my normal 20Mbps) averaging 16-19.
This computer was achieving normal speeds of 20mbps via WIRELESS prior to leopard. Now it only works via ethernet or is slow.
I have tried swaping a few kext files,preference files, etc, but really don't know where to start.
**I'm almost positive it is on the *computer side of things*, not the basestation.
Any help would be greatly appreciated. I would like to know if others are experiencing a speed decrease with leopard via wireless.(**you probably wouldn't know unless your going over 11-12Mbps, because that is where it seems capped.)
My MBP is already been in repair for a week (waiting on a part) and I do not want to jump through hoops for a false hardware issue when it is either a bug in 10.5.1 or a simple fix via terminal or some other firmware,firewall,extension, pref, etc..Thanks

Similar Messages

  • Leopard Wireless Speed Decrease...?

    If someone out there can test a similar setup for me I would appreciate it.
    Using a
    1. G5 Dual 2.5 (10.5.1) with an Airport Extreme a/b/g card (using G).(it is the only client on network)
    2. Airport Extreme N Base Station with g compatible band.
    3. Cable Connection of 20Mbps down/2.5 Mbps up
    4. Using: http://ma.speedtest.rcn.net/ to confirm speeds(although you have to be an RCN subscriber) any respectable speed test will do.
    5. Try wireless and record speeds (mine hasn't broken 11Mbps, (although it is ranging from 4-9 on average)
    6. Plug in Computer directly to base station via ethernet and record speeds. (I'm getting my normal 20Mbps) averaging 16-19.
    This computer was achieving normal speeds of 20mbps via WIRELESS prior to leopard. Now it only works via ethernet or is slow.
    I have tried swaping a few kext files,preference files, etc, but really don't know where to start.
    **I'm almost positive it is on the *computer side of things*, not the basestation.
    Any help would be greatly appreciated. I would like to know if others are experiencing a speed decrease with leopard via wireless.(**you probably wouldn't know unless your going over 11-12Mbps, because that is where it seems capped.)
    My MBP is already been in repair for a week (waiting on a part) and I do not want to jump through hoops for a false hardware issue when it is either a bug in 10.5.1 or a simple fix via terminal or some other firmware,firewall,extension, pref, etc..Thanks

    Hi Shaun...by default the second Firewall is the titled ipfw, this wall can be configured through the Terminal, there are some sites the give you the complete manual on how to set it up, but basically it showed its zany head during the Panther 10.3 install where upon users where not able to configure the System preferences' own firewall (everything was grayed or locked out and was unable to be opened) except for the terminal command, There was a big hooplah about it, but basically OS X contains two, the ipfw is a FreeBSD app. that is complex and its for concise configuration of ports. Im sure there is an old thread about here or in macrumors.
    http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/firewalls-ipfw.html
    http://seaotter.berkeley.edu/cab/mac-firewalls/
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    Message was edited by: Mario Lobo

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    Are you connected to the master or test socket? Do you have other sockets in other rooms?
    As your stats show a stable connection for the last 12 days i would if it was mine try 1 reset to se if noise margin would go back to 6db and if not then I would contact the mods and ask them to reset noise margin back to 6db. https://bt.custhelp.com/app/contact_email/c/4951
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    If you like a post, or want to say thanks for a helpful answer, please click on the Ratings star on the left-hand side of the post.
    If someone answers your question correctly please let other members know by clicking on ’Mark as Accepted Solution’.

  • Internet Speed Decrease

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  • Speed decrease, ping increase!

    I know there's more threads containing the same problem, but I feel another thread should be created. More so for the BT team to take note.
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    1. Best Effort Test:  -provides background information.
    Download Speed
    1.68 Mbps
    0 Mbps
    65.86 Mbps
    Max Achievable Speed
     Download speedachieved during the test was - 1.68 Mbps
     For your connection, the acceptable range of speedsis 16 Mbps-65.86 Mbps .
     Additional Information:
     IP Profile for your line is - 65.86 Mbps
    2. Upstream Test:  -provides background information.
    Upload Speed
    5.56 Mbps
    0 Mbps
    20 Mbps
    Max Achievable Speed
    Upload speed achieved during the test was - 5.56Mbps
     Additional Information:
     Upstream Rate IP profile on your line is - 20 Mbps
    The test result has indicated that you should contact your ISP for further assistance.

  • Speed Decrease = Studdering?

    I've been working with some slow motion for the first time and have searched these forums for a solution. I know some people have recommended "tweeder" and some other 3-party apps, but I'm not really interested in importing/exporting footage like that.
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    If you think about what you are asking FCP to do, you won't be surprised with the result you get when slowmo-ing. When you slow something down, you are asking FCP to take the same amount of information (the original frames) and spread it farther.
    The best setting to avoid uneven stuttering is an even multiple of frame rates. Frames are quantum entities and if you set an non-discreet amount the software must create an in-between frame of a mixture of the preceding and following frames. So if you set your speed to an even multiple - 300%, 200%, or a proper fraction - 50%, 33.333%, 25%, 12.5% (this equates to 1/2, 1/3, 1/4, 1/8) you will get better results.
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