Hi all,

We are now using an Airport Extreme Base Station at home and it's fast, 
provides a strong signal and disk sharing. Nice.

However, my iMac loses its connection with the base station regularly - 
sometimes once in two days, sometimes twice a day. When it does so my iPad is 
still connected just fine, as is my iPod touch and is my partner's MacBook Air. 
The WiFi menu bar icon on my iMac is greyed out and it simply says "Searching 
for networks ..." and not one network is listed. Switching WiFi off and on 
makes no difference. Airport utility cannot even see the AE base station. The 
only way I can get my WiFi back is to restart my iMac when WiFi reconnects as 
though there's never been a problem.

I've read that this can happen if the DNS or DHCP or something gets its IP 
addresses mangled or lost so maybe something like this is happening. As it only 
affects my iMac it surely must be a setting on the iMac which is wrong or is 
clashing with something on my Netgear DG834G router.

Is anyone able to tell me what settings I need to check or change to resolve 
this very annoying issue?

Thanks in advance for any help.

Regards,

Stephen

“We’re still basing that economic activity on fossil fuels. You know, the 
metabolism of that economy is now on a collision course, clearly, with the 
metabolism of our planet,” - Tim Flannery, a world recognized climate change 
scientist and Australian of the Year in 2007


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