My 11" MacBook Air never remembers wifi...

[spaceballl]

I always have to reconnect. Even if it falls asleep, when it wakes up, it doesn't auto-connect to my home network. I have to do it manually. None of my other macs do this... most recent version of OS X LIon...

 

[darkheroz]

The problem is in your settings. U must check - Ask to join new networks box in Settings - Network - WiFi

In Advanced option there is another box to check - Remember networks ...

check it !

On my MBA 11 everything works OK and remember passwords.

 

[AndyinAtl]

mine forgets maybe 20% of the time. its weird.

 

[PhazonUK]

Mine has done this since day one. And I think quite a few people had this problem also.

I don't have to enter the password or anything, I just have to go onto my WiFi and re-select the network again. Sometimes I'll have to do it twice as the first time I get a "Connection timeout" error.

 

[wx4olf]

Mine remembers the network when plugged into power but if the MacBook has been sleeping unplugged it is almost guaranteed to have forgotten the network. Mildly annoying.

 

[KPOM]

This has been an intermittent issue in OS X 10.7. Reportedly, 10.7.3 will fix this somewhat.

 

[Fazzy]

After waking from sleep, mine sometimes has amnesia and connects to a btopenzone spot

 

[gentlefury]

This is sadly a known problem. Turn off bluetooth and it will stop doing that.