My new Mac Air continues to disconnect from WiFi after going to sleep. When waking it up I have to manually re-connect. How do I keep it connected?

There is a whole discussion of folks trying to find other various 'fixes' here:

(won't let me put a link.... so the title is...) (And of course, it doesn't actually tell you not to put a link, it just says error and please try again... so you keep trying at different times... sheesh Apple)

"Wifi disconnects after sleep and takes long time to reconnect with Mavericks"

In my experience, this has been around since Leopard (at least). It has come and gone for various segments of users with each OSX version and 'point' version. I've had this problem on and off on my personal machines over the years (and saw it on machines at the Fortune 100 I used to work in IT for), as as you say Navigator1850, it came and went with system updates.

I'm having the problem now on my new Macbook Air (2013 model). My 'fix' for it has just been to turn off BT before sleep, and back on after it wakes. (The problem didn't appear until I started using BT.) That's not a good fix, but it works until the next Mavericks update, I guess (and hope it's fixed then). I just don't have time at the moment to try all the other stuff.

Thanks Steve, As soon as I saw your reference to bluetooth I knew you might have it. I only recently (Xmas 2013) enabled bluetooth for a bluetooth speaker present from Santa and it seems since then I've had WIFI connection issues. Just disabled bluetooth and macbook pro has come out of sleep mode fully WIFI connected. Well done 🙂

Don't know if your solution would help me but I'm willing to try it. I have an iMac with Snow Leopard. I am connected to Gateway via ethernet. After sleeping, the computer takes as long as 30 seconds to realize that I AM connected to the internet.

If you think your solution could help me, could you please give details?...

My time capsule router is set on automatic MTU and encrypted with WPA2 and I use the 5Ghz network!

1. Cleaned all the wifi passwords in keychain on my iMac

2. Created a new network location in system preferences

3. In this location I deleted the bluetooth pan and bluetooth dun connection.

4. In this location I changed the preferred connection-order to wifi on #1 and ethernet on #2.

5. Restarted my iMac.

What is "time capsule rounter?"

How to set MTU & WPA2?

What is 5Ghz network?

How to clean wifi passwords?

I remember seeing something about creating a location, but don't remember where.

what is bluetooth "pan" and "dun"?

Thanks!

Had same problem with Mac Air. Reset PRAM, reinstalled OSX. Worked for the first few wake ups, then stopped auto connecting. I have a Netgear cable router with wifi. I brought my Airport Express out of mothballs and it connects everytime now!

Apple is getting buggy enough to start feeling like Windows used to be! Hate to say it but the bugs abound. Photo sharing on iPhone/iPad/Mac also a large mess.

My hard drive was going bad. After replacing it, I no longer have any problem with bringing up Safari.