How do I check my wireless card?

Question

Level 1

14 points

How do I check my wireless card?

Macbook Pro, 10.7.4, 8 gig ram, two AirPort extremes.

All software is up to date.

The background.

My ISP went belly up 2 days ago and once I hardwired my Macbook pro into my modem I was off and running again. However, I have been having trouble connecting to the Internet for the last couple of days wirelessly. I have shut everything down and rebooted, several times, but as soon as I turn on my wireless I loose my connection to the Internet. I have a technician coming to check my Optus modem tomorrow. To complicate the matter, when I arrived at work today the same thing happened with my computer and the connection to the Internet. My airport utility says I am not connected to the Internet where as every other computer at work is.

Now with an Ethernet cable connected I am able to connect to the Internet.

From this I deduce there may be something wrong the wireless card in my own Macbook pro. How do I check this out and what steps can I take to remedy the situation?

MacBook Pro, Mac OS X (10.7.4)

Posted on Jun 12, 2012 4:00 PM

Reply

Answer 1

CMCSK

Level 6

11,452 points

Jun 12, 2012 4:23 PM in response to s2art

s2art wrote:

From this I deduce there may be something wrong the wireless card in my own Macbook pro. How do I check this out and what steps can I take to remedy the situation?

CallApple Care if you have it. Your "deduction" would be a hardware issue and should be properly diagnosed by a repair tech. Otherwise, take the computer to an Apple store or an AASP. Whichever is more convenient for you.

TakeFULLadvantage of your warranty. Posting on a message board should be done as alast resort and if you are out of warranty or Apple Care has expired.

In case it is not a hardware issue -

Change your router channel. Sometimes this is all you will have to do.

Power cycling the router. Read the router's user manual or contact their tech support for instructions.

System Preferences/Internet & Network/Network

Unlock the padlock

Locations: Automatic

Highlight Airport

Click the Assist Me button

In the popup window click the Diagnostic button.

System Preferences/Network- Unlock padlock. Highlight Airport. Network Name-select your name. Click on the Advanced button. Airport/Preferred Networks-delete all that is not your network.

Place a check mark next to "Remember networks this computer has joined." Click the OK button and lock the padlock. Restart your computer.

http://support.apple.com/kb/TS1920 Mac OS: How to release and renew a DHCP lease

No internet connection (wireless)

Check to see if an extra entry is present in the DNS Tab for your wireless connection (System Preferences/Network/Airport/Advanced/DNS).

Delete all extra entries that you find.

Place a check mark next to "Remember networks this computer has joined."

Other resources to check into:

Troubleshooting Wi-Fi issues in OS X Lion and Mac OS X v10.6

Netspot

How to diagnose and resolve Wi-Fi slow-downs

Pv6 troubleshooting

What Affects Wireless Internet?