Wi-fi not automatically connecting to home network upon waking from sleep?

Well I tried Joshuafromauburn's suggesting and it didn't work. Although I had checked that my system software had been updated (automatically through "Software Update") I decided to follow surf1der's link and download the update manually and run the install again.

Wonder of wonders that did the trick. Whoopy.

Just had updated to 10.7.4 hoping this would finally solve this issue. No luck here. Tried all of the above as well. Pretty bad Apple is not addressing this issue and taking responsibility. I am very dissapointed.

FYI also tried to reset DHCP after creating new location - did not work. Found another solution: resetting SMC.

For the first time in months My Macbook connected automatically after waking from sleep!!! Hopefully this will stick. Here is what to do: http://osxdaily.com/2010/03/24/when-and-how-to-reset-your-mac%E2%80%99s-system-m anagement-controller-smc/

This worked perfectly for me too!

This worked perfectly for me as well! Thanks!!

I had changed my router settings by adding security settings. After doing that it constantly asked me to join the network after coming out of sleep. I hadn't changed the router name. So I went back and changed the router name and now it connects to it automatically all the time.

I also noticed that the old name in the list of preferred networks said there was no security. I gues I could have cleared that but I changed the name instead.

Hey,

Just wanted to let you know that this worked great for my iMac. It reconnects now, this has been bothering me for some time now.

Thank you!

Scott

Thanks joshuafromauburn. Worked for me.

@joshuafromauburn thanks; seems that cleared up the issue for me as well on OS X 10.7.4

Another thanks to joshuafromauburn! this worked perfect for me i have 10.7.3! here is his post!

joshuafromauburn

It may be a problem with the connection information stored in your network profile.

1. Go to System Preferences > Network.
2. Click the Wi-Fi connection.
3. Click the Advanced... button on the bottom right.
4. Click the Wi-Fi tab.
5. Under Preferred Networks, select your wireless network.
6. Click the - (delete) button.
7. Turn off your Wi-Fi connection.
8. Turn it back on.
9. Select and login to your wireless network. This will re-save your connection under Preferred Networks.
10. Close your laptop and reopen it to test whether it worked.

Worked for me too!

this worked prefectly for me too! thanks!

Thanks! Worked PERFECTLY!!

Deleting and re-adding my network did the trick. Thanks!

Issue happens whenever you modify security settings on the wireless router. In my case, I changed from WPA to WPA2 without changing the password.

Yep, this did the trick for me. Thanks a million.