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I have a late '08 iMac that consistently shows wireless G about 10-20mbps faster than N. I tested it on a MBP (2007 model) and I'm getting equal speeds for both. Is this a problem with the wireless card in the iMac - or a software issue?
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The 802.11n specification was ratified in September 2009. Your Late 2008 iMac very likely uses a per-ratified version of 802.11n that may not be 100% compatible with the final version of the spec.
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LAN or Internet? What router? If the MacBook Pro is much further away from the router and you are using 5 GHz N, that could be the problem. Higher frequency, signal drop off is worse.
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silvarios wrote:
If the MacBook Pro is much further away from the router and you are using 5 GHz N, that could be the problem. Higher frequency, signal drop off is worse.
This is true. I saw a similar issue with my 2011 iMac. Switching to 2.4 GHz, either G or N, resulted in much better throughput.
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I'm using a 5th gen Airport Extreme. I set the MBP right beside the iMac to test (so there would be no question). As with my iPhone post above, I think I'm about to nuke/pave the iMac. I have a WordPress website that all of a sudden I can no longer access from the iMac (but can from all other Macs & pc's in the house). I've tried flushing dns, deleting caches, etc, but no matter what, when I go to the page it gives me a server error. I have no problem with all other websites I've tried to access. So, I'm starting to think there's a software problem on the iMac. Prior to now, I've always got great wireless N speedtest results (usually better than G - if I remember correctly)
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As with my iPhone post above...
I wonder if this is more an AirPort problem than an iPhone/iMac problem.
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Good thought, Ram, but the drain is still happening when I'm out & about :-(
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That's curious. It has to be a device issue if the problem persists to other locations.