IMac (SL) keeps intermittent dropping of DNS connection

A number of times, I step away from my iMac only to come back and find its dropped its connection to my DNS servers (OpenDNS). My MacBook (still on 10.5.8) never does this.
Looking at console, this error comes up every 2 seconds:
21/11/2009 15:31:31 mDNSResponder[18] ERROR: mDNSPlatformTCPConnect - connect failed: socket 81: Error 13 (Permission denied)
Is this a known issues? Any fixe for this?
Thanks

I haven't had the problem since my upgrade to 10.5.6. Unfortunately, I'm having the same problem with my wife's iMac running Tiger. If we walk away for several minutes the internet connection is dropped. I was considering upgrading to Leopard (which is why I'm checking this forum), but now I'm not so sure.
We're both wireless. The issue isn't with the router. In fact, I replaced the router since the problem started.
I suspect there isn't a problem with a wired solution. However, the router is in a different room from my wife's machine. Is there any way to get a second router to place near the problem iMac to "catch" the signal from the first router, then hard wire it into the iMac? Not an elegant soluation, but perhaps it would work?

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null

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http://support.apple.com/kb/HT4628
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gandhi13
May 22, 2012 10:06 PM
I know that apple have released a rubbish version of mac that has problemos with internet sharing
so here is da answer
1. go to finder>(computer name)>macintosh HD>library>preferences
2. copy the entire systemconfiguration folder and systemconfiguration.old folder to your desktop
3. restart mac and device which you share intenet to
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please use da steps!
https://discussions.apple.com/message/18458473#18458473

How do I keep my Ipad from dropping its wireless connection?

How do I keep my Ipad from dropping its wireless connection?
Most of the time, my iPad does not maintain a connection to the interenet via my wifi router. My PC laptop has continuous connection, so I know it is not the internet connection.
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Poet Margo

I would suggest that you give Apple Tech Support a call and go over your settings under WI-FI and General Settings as well as your router settings etc.. There are all sorts of things I could tell you to try but this forum is not the best place to go over all the numerous settings that could be the issue. Just call them and they will walk you through the proper trouble shooting steps.

IMac (SL) keeps intermittent dropping of DNS connection

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