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Why don't Macs join wifi networks when they find them?

T

tekno

macrumors 6502a
Original poster
Oct 15, 2011
842
4
I have a MiFi dongle. If my MacBook Air is already running when I turn on my dongle, the Mac won't connect to it. To make it connect I need to manually select it from the list of available networks. Why is this?!

My phone and my tablet both connect to it when it appears, but my Mac needs me to hold its hand.
 
GGJstudios

GGJstudios

macrumors Westmere
May 16, 2008
44,545
943
tekno said:
I have a MiFi dongle. If my MacBook Air is already running when I turn on my dongle, the Mac won't connect to it. To make it connect I need to manually select it from the list of available networks. Why is this?!

My phone and my tablet both connect to it when it appears, but my Mac needs me to hold its hand.
Click to expand...
If you add the network to your list of preferred networks, it should automatically join whenever it detects the network.
 
Intell

Intell

macrumors P6
Jan 24, 2010
18,955
509
Inside
It will automatically connect. However in your case you may have set it to not automatically join that network.
 
Nermal

Nermal

Moderator
Staff member
Dec 7, 2002
20,632
3,987
New Zealand
This annoys me too; I set my iPhone to tether but need to manually select the network from the list because it doesn't automatically connect despite being a preferred network. It only auto-connects when waking from sleep.
 
GGJstudios

GGJstudios

macrumors Westmere
May 16, 2008
44,545
943
Nermal said:
This annoys me too; I set my iPhone to tether but need to manually select the network from the list because it doesn't automatically connect despite being a preferred network. It only auto-connects when waking from sleep.
Click to expand...

Have you have checked "Ask to join new networks" in System Preferences > Network > AirPort ?
 
Nermal

Nermal

Moderator
Staff member
Dec 7, 2002
20,632
3,987
New Zealand
I'm not sure; I'm at work right now so I can't check at the moment. I'm mostly likely using whatever the default is.
 
GGJstudios

GGJstudios

macrumors Westmere
May 16, 2008
44,545
943
Nermal said:
I'm not sure; I'm at work right now so I can't check at the moment. I'm mostly likely using whatever the default is.
Click to expand...
After checking that, you might try removing the network from your preferred list, then re-adding it, if you haven't tried that already.
 
T

tekno

macrumors 6502a
Original poster
Oct 15, 2011
842
4
GGJstudios said:
If you add the network to your list of preferred networks, it should automatically join whenever it detects the network.
Click to expand...

I've just been trying it with my home network (Airport Extreme) and the same is true:

If the network is available when my MacBook Air wakes/boots, it'll see and join any known networks.

But if the network only becomes available after the Mac has woken, it'll see it but won't join it. When opening the list of available networks, I can see both my networks (dongle and Airport) but it won't join either of them until I select it.

Both my Samsung S3 and Nexus 7 will see and then join, without my input. Why can't the Mac do the same?!
 
Intell

Intell

macrumors P6
Jan 24, 2010
18,955
509
Inside
My Mac's don't need to be told to join the network. They automatically do it. Your setup might be configured differently or your version of Mac OS X has a few bugs left in it.
 
Nermal

Nermal

Moderator
Staff member
Dec 7, 2002
20,632
3,987
New Zealand
GGJstudios said:
After checking that, you might try removing the network from your preferred list, then re-adding it, if you haven't tried that already.
Click to expand...

It was the same behaviour on my old machine too so I don't think that's the issue (although I'll try it).
 
Nermal

Nermal

Moderator
Staff member
Dec 7, 2002
20,632
3,987
New Zealand
Sorry I didn't reply sooner; I forgot all about this!

I have "Ask to join new networks" and "Remember networks this computer has joined" turned on and have removed and re-added my hotspot to the Preferred Networks list. When I enable my hotspot it shows up in the AirPort menu almost immediately but still doesn't auto-connect. The only time it connects automatically is if the hotspot is already enabled when I wake the computer from sleep.
 
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