Currently Being ModeratedJul 24, 2011 8:21 PM (in response to Cory James22)
AVAST seems to be the culprit for many, but no anti-virus is installed on this computer.
Currently Being ModeratedJul 25, 2011 5:56 PM (in response to Cory James22)
I am having a similar issue. My iMac (late 2009) 27" does not want to auto connect to my home WPA network now that it is on lion. It just sits there with no internet everytime the computer goes to sleep and needs to be manually told to connect after.
Currently Being ModeratedJul 25, 2011 6:18 PM (in response to JAH2488)
Ok I got mine working. Try this: first, go to syste
Preferences -> network -> wifi -> advanced settings and delete any remembered networks. Then open the program named keychain, and delete any saved networks. The go to MacHD-> Library ->System Configuration and delete any preference files (com.xxxx....) related to the network including the file with nat in it. Empty the trash and restart the computer. Connect to the network and tell it to remember the network. Hopefully that will work
Currently Being ModeratedJul 31, 2011 2:27 AM (in response to Cory James22)
Did your suggested method work for you or is it just a suggestion? I'm holding off upgrading any further SL machines to Lion until I can figure this (and a few other issues out).
Currently Being ModeratedAug 5, 2011 7:24 AM (in response to Cory James22)
I tried the suggestion of deleting all old networks in the keychain, etc. and my connection was fixed for about 36 hours. It went down again the other morning and I had to reset my router once more.
The interesting thing is that my husband's PC won't connect to the internet either unless my iMac can connect. Another interesting point is that my sister's Macbook Pro won't connect at all and she's running 10.6.8.
This is such a frustrating problem and I'm very annoyed that there hasn't been an update to resolved the issue yet.
Currently Being ModeratedAug 28, 2011 8:34 AM (in response to Cory James22)
Same problem after lion installed on my Macbook Pro but no issues with my IMac running SL, Cory James 22 has the solution, except that I didn't have to do the keychain part of it. Just go to Network preferences>Advance>WI-FI tab>Preferred Networks and delete all of them, make sure that the remember networks box is checked, reboot and connect to your Network it will ask for your password and will save to keychain. You should be good after that. If that doesn't do it follow all the same steps but first, renew the DHCP lease on the TCP/IP tab. That did it for me and no problems so far. Good luck.
Message was edited by: rcordo
Currently Being ModeratedSep 1, 2011 5:30 PM (in response to mr_timp)
Yes, it seems to be a temporary solution to something that needs to be addressed in a future update.
Currently Being ModeratedAug 21, 2013 3:08 PM (in response to Cory James22)
My problem was fixed with your suggestion. I think it was because I had connected to a network previously with the same SSID, but the router has a different address. So that address was perhaps saved in one of my network preference com.* files, causing my Mac to trying finding it, timeout and then find the new networks. Anyway, it works as of now. Thanks much, Cory James22!