anna isabelle

Q: iMac cannot connect to wireless network anymore

Hi all. I know this question has been asked lots of times, but after browsing the discussions, I haven't been able to find a solution to my problem. And it's 4am already!

 

I'm sort of a newbie mac user. Bought my unit last september (the new 21.5-inch iMac) and I didn't have any problems connecting to our wireless router. Yesterday though, I had problems with the wireless network and called the service provider to fix the problem. The wireless network now works perfectly and all other devices in the house are able to connect except for my iMac. It's really frustrating.

 

I may have screwed up something with the network settings but I really can't figure out how to change it back. I keep using the diagnostics tool, but it doesn't solve the problem. I also tried deleting the connection and creating a new one, still won't connect. I tried both DHCP and PPPoE just to see which one would work, and nothing. Whenever I go to diagnostics though, I see the bars signal. When I finish the diagnostics, I get the question mark in the middle saying I have no network connection. The iMac recognizes the wireless network but won't connect. I have a WEP password, and I'm 100% sure I did not get it wrong. I also tried trashing the system config files from preferences and rebooting (as suggested in another forum), still the same result. I also checked Sharing in system preferences (suggested by another) and there's nothing wrong there too.

 

Please can someone help? Will try anything. I'm now using my flatmate's laptop (who has a connection) but she has to leave for work soon. I have too much work to do as well and I really need an internet connection.

iMac, Mac OS X (10.6.8)

Posted on Nov 16, 2011 12:24 PM

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Q: iMac cannot connect to wireless network anymore

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  • by anna isabelle,

    anna isabelle anna isabelle Nov 22, 2011 5:15 AM in response to Ingo2711
    Level 1 (0 points)
    Nov 22, 2011 5:15 AM in response to Ingo2711

    my iMac's working again! i'm so freaking happy and i don't even know how it happened.

     

    left the mac untouched for days (like around a week) since i had a shoot in some far off place. i was set to troubleshoot again tonight and when i checked my settings, voila! just like magic. oh, and i did reset my router before turning it on. dunno if that's what did the trick. why i just thought of resetting my router just now? well, i couldn't find the reset button before. hehe.

     

    thanks everyone for all your helpful tips. i'm just hoping the problem won't come up again. i read from other forums that some experience the same problem repeatedly.

  • by Paul_31,

    Paul_31 Paul_31 Nov 22, 2011 5:19 AM in response to anna isabelle
    Level 6 (13,810 points)
    Nov 22, 2011 5:19 AM in response to anna isabelle

    Good news - glad you're sorted!

  • by Mistress_Snape,

    Mistress_Snape Mistress_Snape Jan 9, 2013 7:14 PM in response to Ingo2711
    Level 1 (0 points)
    Jan 9, 2013 7:14 PM in response to Ingo2711

    Ingo2711 wrote:

     

    After more than 2 hours on the phone with Apple Support, the last advice did the trick.

    The router was set to 802 b+g+n protocol. My MacBookPro could log in without problems using only b+g protocol, the iMacs were set to use "n".

    After manually setting the router to use b+g only, the iMacs connected at once.

    Problem solved on my side

     

    After getting a new router, every device in my house connected to the wireless easily except for my mid 2011 iMac.  I spent HOURS trying to figure out why it would recognize the connection but not connect to the internet. I tried everything from rebooting to trashing system files to pretty much every other suggested solution in these forums, but THIS was the only thing that worked!!! So to others out there with similiar problems, definitely try setting the router to b+g only. And a HUGE thank you to Ingo2711. You seriously made my day!

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