I'm running 10.9. Here is my fix:
- Turn off blue tooth
- Go to System Preferences > Network.
- Click the Wi-Fi connection.
- Click the Advanced... button on the bottom right.
- Click the Wi-Fi tab.
- Under Preferred Networks, select your wireless network.
- Click the - (delete) button.
- Turn off your Wi-Fi connection.
- Turn it back on.
- Select and login to your wireless network. This will re-save your connection under Preferred Networks.
- Close your laptop and reopen it to test whether it worked.
hope it helps. with bluetooth off doesnt bother me as much as not having wifi auto reconnect after sleep mode.
I have the same problem with my 2013 MBA. It's a real pain. It seems that the problem doesn't happen if bluetooth is switched off but I have found no proper fixes.
I've been on support with apple for hours and they have no clue how to sort it and don't acknowledge it as an issue.
I agree with @Slihousttes that it's less annoying to have to turn bluetooth on and off all the time, but this is still a real pain and not what you expect from Apple. I hope they pick up on it properly and release a fix soon.
I have same problem with macbook air.Recently tried this and seems to work......just by chance...no great knowledge here.
Went to Airport Utility
Select (Time Capsule/Aorport Extreme)
Select Wireless from list of options at top
Select wireless options on new screen....towards bottom
Change to 802.11n
Seems to have worked for me
if you go into system preferences to change the settings, first make sure it is unlocked so that changes are available and can be made.
go to system preferences
click on network
make sure lock is unlocked (bottom left corner)
click advanced (bottom right corner)
under wifi option (click your network and manually drag it to the top of the list): it joins networks in the order listed here, so if you put yours at the top it will join that first.
click apply settings
click the lock again (bottom left) to lock changes
hopes this helps. shouldnt have to reconfigure beyond this as suggested by some other posts, this should be the simplest option first.
I am having this same issue after the most recent Mavericks upgrade and have tried all the fixes I have found so far (add/remove network, change priority order). I don't use Airport. I'm mainly posting here so hopefully Apple will see many people here have this problem - and if anyone knows another fix please let me know! It's really annoying to have to constantly turn the wifi off and on - I work from home and now must do this at least 30 times a day!
I started to have the same problem on March 27, 2014. Everytime my Macbook Air (Mid 2012) wakes up from sleep, it scans for available network but does not connect to anything. Sometimes, it doesn't even see my home network. I have tried everything from rebooting to deleting and setting up the network again to chainging the priority order of my home network to the top. Apple needs to fix this with its next update.
Thanks simsjaso, but this doesn't work. It's a more fundamental bug in the system not linked to simple config settings like this. Trust me, I have tried EVERYTHING including hours on phone with apple support, two full system restores and a new wireless card. It is a bug that apple can't currently be bothered to fix.
Thank you, this works! For now at least.
Will I have to redo this for all my saved networks? And how long does this fix work for? Did you notice any issues once you turned the blue tooth back on? Thank you again!
FYI - this issue started for me after I installed mac osx 10.9 on my macbook air 13-inch, Mid 2012