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
The only one that seems to be missing something is the TCP/IP tab where the router is missing an IP address. Here's mine:
Your router IP address is likely, although not definitely, the same. All this detail should be filled in automatically and I'm afraid I'm running out of ideas.
Although it shouldn't be necessary you could try setting it up Manually from the drop down Configure IPv4 Address menu. Make a note of the numbers that are there now and for the router use the 192.168.1.1 just to try your luck. If that doesn't work try 192.168.0.1
Other than that I hope someone else drops in with some other ideas for you. Very frustrating.
Posted on Nov 17, 2011 8:53 AM




