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Mac :: MacBook Pro Won't Connect To Wifi?

Iphone will, the dell behind connects, but my MBP won't

View 2 Replies (Posted: Mar 25, 2010)

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My Macbook Pro has been great since I got it last June.  Recently I just did an software update that I believe included something with the wifi/airport setting.  Now I cannot connect to ANYTHING.  My work wifi network I can connect with my iPhone and others have connected to my "puck" wifi from CLEAR.  I have ruled out that the connections I am trying to connect to are the problem.  When I try to connect with my MBP I it tries and then gets greyed out in the top with the exclamation point.  It says: 

Alert: No Internet Connection 

When I have tried to "fix" using the normal processes when clicking on it it says it cannot help me.  I have researched and cleared the network settings in the keychain access.  There was another thing that said to delete the or something like that but when I went to the area in Library/Preferences that file didnt exist.  I need my Macbook to access the Internet. 

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Yesterday I purchased a new Macbook Pro and brought it to use on campus today and although the wireless status bar said I was connected I wasn't able to navigate the internet. It would sometimes prompt me to enter my atlas login information but after clicking submit wouldn't do anything or the apple homepage on safari would open and I wouldn't be able to navigate to anywhere else.I called the help desk and was told to go to the tech room, after going there and was told I couldn't be helped I was sent to another lady who called someone and by merely restarting my laptop I was able to navigate the internet. After that I went back to the building I spend all my time in and the I was back to square one. I have searched numerous forums with similar issues and attempted as much as I understood and could and am still unable to connect.Please help, I need so badly to be able to connect to wifi on this computer while at school!

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I have a MBP model 5.2 mid 2009, and after updating to 10.6.4 from 10.6.3 my wifi won't connect or is dead slow. I have never had any problems with it.

I'm using an Airport extreme firmware 7.4.2(latest, is 1gen APE N). I tried creating a new network connection, flush dns, reset pram, reset airport.

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Posted: May 17, 2012

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Since then I've done a few things.Tried running the Netgear router with no encryption at all (same thing happens). Will lose connection and then time out trying to connect
I've tried the MacBook in a coffee shop with wifi access and at my parents (same NetGear router) and at my new apartment with a horrible Orange Livebox.
Taken the MacBook in to see the genius bar at Glasgow Apple store. Worked fine for them, but I explained it was intermittent but we could not force it to fail. I'm sure if it ran for an hour it would.
At present if I have the MacBook in the living room (where the Livebox router is situated) its fine and wont drop connection. If I walk some 5m to my bedroom it will work for approximately half and hour and then lose it. A few days ago I bought the Snow Leopard upgrade and installed it last night. MacBook runs a hell of a lot faster (yay!) but moving it away from the router and its dead as disco in half an hour.

So to clarify, the MacBook has been tested on 4 wifi networks/ locus with same issue. iPhone, Xbox 360 and PS3 all have no issues with dropping connection no matter where they are in the apartment.

Apartment is a new build and its walls are not made out of lead or kryptonite. Is this a hardware issue rather than software? When updating to Snow Leopard it was an update to the existing OS of Leopard not a clean install.

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Unlike a lot of other MBP owners on this forum, my wifi does NOT drop out. Ever. Once it's connected it is as solid as a rock, however getting to that state in the first place is a game in itself.

Basically, after turning the MBP on, reviving from sleep or turning the airport on, the MBP will not connect to it's "known" networks. It finds them OK, even goes as far as suggesting them, but will not automatically connect. The access keys are saved, and even when trying to select the network and connect manually it fails (timeout). The only way to connect seems to be to turn off the airport and turn it back on again. If after 10 seconds of so it does not connect it's not going to, so turn it off and on again. Often I have to do this for 10 minutes or more before it - magically - connects.

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Posted: Mar 22, 2010

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I currently have the network setup assistant running and configuring - but it's been about an hour and it hasn't done anything.Is there something else i need to do?

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Posted: Aug 6, 2009

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Posted: Apr 22, 2012

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Posted: Jul 4, 2012

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My Imac (mid 2007 snow leopard) doenst connect to wifi any more. it used to work but is seems broken. (nothing changed at the network) It doens recognize networks but when ik try to connect it times out.

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Posted: Jun 30, 2012

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