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A workaround for AirPort/Wifi unusable after wake from sleep Network
Finding your WiFi/Airport connection broken after your machine wakes from sleep?

It appears that, with some non-Apple base stations where the Mac is using DHCP, it can forget its IP address during sleep, but does not request a new one. The best solution is to switch to using a fixed IP address, as even turning AirPort off then reconnecting to the network has little effect.
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A workaround for AirPort/Wifi unusable after wake from sleep | 3 comments | Create New Account
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A workaround for AirPort/Wifi unusable after wake from sleep
Authored by: ajoakland on Oct 09, '03 09:49:56PM

Did you try using Cocktail www.macosxcocktail.com to request a new DHCP address? There should be a terminal command line option for this as well, that could just be put in an apple script that you can access from your AScript menu.



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A workaround for AirPort/Wifi unusable after wake from sleep
Authored by: redwing6454 on Oct 10, '03 12:57:26AM
See previous hint for more.

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Or just tell it to DHCP again.
Authored by: avramd on Oct 10, '03 06:54:37AM

Actually, I've found you only need "sudi ipconfig set en1 DHCP" in a Terminal window. The above reference says you need to set your ipconfig to something else, then back to DHCP.

Every time I've tried it, just setting it to DHCP again causes it to renew the lease, or get a new one if necessary.



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