Macbook Pro won't connect to wifi while all other macbooks in house will.

I have a MacBook Pro running 10.6.8 and we got wifi at the house this afternoon. It will not connect, if I open network diagnostics the top four lights are green, internet and server are red. There are two other macbooks in the house(at least one also running 10.6.8) and two ipads, all of which connect with no problem. The macbbok in question connects fine at coffee shops and, up until a week ago, fine with the wifi at my last apartment.
We are using Charter and the router is a Motorola SBG941.
Thanks for any advice you can give!

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
Mac OS X 10.6 Help: Solving problems with connecting to the Internet
What Affects Wireless Internet?
Solutions for connecting to the Internet, setting up a small network, and troubleshooting

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This is the first time ever I see this problem since I started using this iPad.
What happened to my iPad??

Some things to try first:
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4. Go into your router security settings and change from WEP to WPA with AES.
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http://www.youtube.com/watch?v=XsWS4ha-dn0
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~~~~~~~~~~~~~~~
If any of the above solutions work, please post back what solved your problem. It will help others with the same problem.
 Cheers, Tom

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Hello Rattisate,
Sorry to hear you are not able to connect to Wi-Fi on your MacBook Pro. I would be concerned about this too. You can find information on how to troubleshoot this in the following article:
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My Mac Pro won't connect to Wifi?

My Mac Pro won't connect to the Wifi that it has been for the past 2+ years. All other devices in our home that use the same Wifi are working just fine.

Tried doing Network Diagnostics multiple times, did not work. Keeps saying it can't connect or times out.
What color was the light pertaining to Wifi in the left column? Red, Green, or Yellowish/Orange?
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Disconnect & reconnect your modem. unplug it for about 10 seconds. Plug it back in. Do the same for Apple’s routers. Wait for everything to reboot.
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Click the Assist Me button.
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============================
What to do when you can't connect to the Internet
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=====================
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My ipad2 has lost wifi connectivity at adistance while all other devices connect to new wifi.

After getting new wifi network, my ipad2 loses connectivity unless it is right beside the router. All other devices have good wireless connectivity.

Some things to try first:
1. Turn Off your iPad. Then turn Off (disconnect power cord for 30 seconds or longer) the wireless router & then back On. Now boot your iPad. Hopefully it will see the WiFi.
2. Go to Settings>Wi-Fi and turn Off. Then while at Settings>Wi-Fi, turn back On and chose a Network.
3. Change the channel on your wireless router (Auto or Channel 6 is best). Instructions at http://macintoshhowto.com/advanced/how-to-get-a-good-range-on-your-wireless-netw ork.html
4. Go into your router security settings and change from WEP to WPA with AES.
5. Renew IP Address: (especially if you are droping internet connection)
    •    Launch Settings app
    •    Tap on Wi-Fi
    •    Tap on the blue arrow of the Wi-Fi network that you connect to from the list
    •    In the window that opens, tap on the Renew Lease button
6. Potential Quick Fixes When Your iPad Won’t Connect to Your Wifi Network
http://ipadinsight.com/ipad-tips-tricks/potential-quick-fixes-when-your-ipad-won t-connect-to-your-wifi-network/
~~~~~~~~~~~~~~~~~~~~~~~~~
iOS 6 Wifi Problems/Fixes
Wi-Fi Fix for iOS 6
https://discussions.apple.com/thread/4823738?tstart=240
How To: Workaround iPad Wi-Fi Issues
http://www.theipadfan.com/workaround-ipad-wifi-issues/
Another Fix For iOS 6 WiFi Problems
http://tabletcrunch.com/2012/10/27/fix-ios-6-wifi-problems-ssid/
Wifi Doesn't Connect After Waking From Sleep - Sometimes increasing screen brightness prevents the failure to reconnect after waking from sleep. According to Apple, “If brightness is at lowest level, increase it by moving the slider to the right and set auto brightness to off.”
Fix For iOS 6 WiFi Problems?
http://tabletcrunch.com/2012/09/27/fix-ios-6-wifi-problems/
Did iOS 6 Screw Your Wi-Fi? Here’s How to Fix It
http://gizmodo.com/5944761/does-ios-6-have-a-wi+fi-bug
How To Fix Wi-Fi Connectivity Issue After Upgrading To iOS 6
http://www.iphonehacks.com/2012/09/fix-wi-fi-connectivity-issue-after-upgrading- to-ios-6.html
iOS 6 iPad 3 wi-fi "connection fix" for netgear router
http://www.youtube.com/watch?v=XsWS4ha-dn0
Apple's iOS 6 Wi-Fi problems
http://www.zdnet.com/apples-ios-6-wi-fi-problems-linger-on-7000004799/
~~~~~~~~~~~~~~~~~~~~~~~
How to Boost Your Wi-Fi Signal
http://ipad.about.com/od/iPad_Troubleshooting/a/How-To-Boost-Your-Wi-Fi-Signal.h tm
Troubleshooting a Weak Wi-Fi Signal
http://ipad.about.com/od/iPad_Troubleshooting/a/Troubleshooting-A-Weak-Wi-Fi-Sig nal.htm
How to Fix a Poor Wi-Fi Signal on Your iPad
http://ipad.about.com/od/iPad_Troubleshooting/a/How-To-Fix-A-Poor-Wi-Fi-Signal-O n-Your-iPad.htm
iOS Troubleshooting Wi-Fi networks and connections http://support.apple.com/kb/TS1398
iPad: Issues connecting to Wi-Fi networks http://support.apple.com/kb/ts3304
WiFi Connecting/Troubleshooting http://www.apple.com/support/ipad/wifi/
How to Fix: My iPad Won't Connect to WiFi
http://ipad.about.com/od/iPad_Troubleshooting/ss/How-To-Fix-My-Ipad-Wont-Connect -To-Wi-Fi.htm
iOS: Connecting to the Internet http://support.apple.com/kb/HT1695
iOS: Recommended settings for Wi-Fi routers and access points http://support.apple.com/kb/HT4199
How to Quickly Fix iPad 3 Wi-Fi Reception Problems
http://osxdaily.com/2012/03/21/fix-new-ipad-3-wi-fi-reception-problems/
iPad Wi-Fi Problems: Comprehensive List of Fixes
http://appletoolbox.com/2010/04/ipad-wi-fi-problems-comprehensive-list-of-fixes/
Connect iPad to Wi-Fi (with troubleshooting info)
http://thehowto.wikidot.com/wifi-connect-ipad
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Fix Slow WiFi Issue https://discussions.apple.com/thread/2398063?start=60&tstart=0
How To Fix iPhone, iPad, iPod Touch Wi-Fi Connectivity Issue http://tinyurl.com/7nvxbmz
Unable to Connect After iOS Update - saw this solution on another post.
https://discussions.apple.com/thread/4010130
Note - When troubleshooting wifi connection problems, don't hold your iPad by hand. There have been a few reports that holding the iPad by hand, seems to attenuate the wifi signal.
Wi-Fi or Bluetooth settings grayed out or dim
http://support.apple.com/kb/TS1559
~~~~~~~~~~~~~~~
If any of the above solutions work, please post back what solved your problem. It will help others with the same problem.
 Cheers, Tom
BTW- Your profile shows you have iOS 6.1.4 installed. The max iOS for an iPad is 6.1.3. iOS 6.1.4 is for iPhones only.

Macbook Pro won't connect to wifi but other computers are working perfectly

Hi,
I have a 2012 MacBook Pro that connects to WiFi no problem anywhere else - except for my parent's house (who I am currently visiting). There are 2 other PCs in the house that connect to the WiFi without a problem, as does my iPhone. When I try to connect, the Network Setup Assistant keeps saying "Connection Timeout" and then when I go into "Assist Me" the error comes up as "The password you entered is invalid." I know that the password is correct, but I can't get passed this step...tried restarting computer and router but no luck.
Help!!

Click the Advanced button in the Network preference pane, then the TCP/IP tab. Type something (anything, as long as it's unique) in the DHCP Client ID text box. Click OK, then Apply. Reopen the TCP/IP tab and click Renew DHCP lease.

Macbook Pro won't connect to wifi router

My laptop won't connect to my wifi at home when I go into my room. The wireless router is on the other end of the house and I know you'll probably say it's out of range, but i've been in the same room for 2 years and i've never had problem connecting it until up to a couple of weeks ago. Nothing has changed in the set up of the house, it just randomly stopped connecting. Can anyone suggest what may be wrong??
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It could be that one of your neighbors has added a router that's basically overpowering yours. Try logging into the router and changing the wireless channel.

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Restart the router. Wait until all the lights are lit up.
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"followed all directions"
so you followed ALL the steps described in these articles?
iOS: Connecting to Wi-Fi - Apple Support
If your iPhone, iPad, or iPod touch won’t connect to a Wi-Fi network - Apple Support
iOS: Wi-Fi settings grayed out or dim - Apple Support
If so, since it states:
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Try connecting to a Wi-Fi network in a different location. If your device can connect, you’ll need to get help with your Wi-Fi network. If it can’t connect to any Wi-Fi networks, contact Apple.
Update your Wi-Fi router with the latest firmware and make sure the router supports your Apple product. For more information, contact the manufacturer of your router.
Who set the wifi?
what other devices did you try?
what did the internet provider say?
did you try different wifi locations?
Thanks for taking more time to post your problem and for using Apple Support Communies
Truly yours
James
<Edit> : OK great

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When I took it to the apple store ,my phone got connected to their wifi router but stopped completely once i reached home ,
I have even updated to ios 8.1 !!
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My mac won't connect to Internet but all other dev...

hi there my Mac will not connect to the Internet but all other Apple and other devices will connect wirelessly can someone help ? Is it an issue with the IP address to the Mac or is it the DNS which is currently blank?

Try these manual network settings.
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Subnet Mask   255.255.255.0
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There are some useful help pages here, for BT Broadband customers only, on my personal website.
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Why can't I connect my iPad to the server when all other devices can?

You may not really be connected to your WiFi network.
Your router may not have given your iPad a valid IP address. Go to Settings > Wifi > your network name and touch the ">" to the right to see the network details. If the IP address starts with 169 or is blank then your router didn't provide an IP address and you won't be able to access the Internet.
Sometimes the fix can be as simple as restarting your router (remove power for 30 seconds and restart). Next, reset network settings on your iPad (Settings > General > Reset > Reset network settings) and then attempt to connect. In other cases it might be necessary to update the router's firmware with the latest from the manufacturer's support web pages.
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Hmmm...yes, there should be, although resetting the modem isn't hard (unless they mean something along the lines of resetting to factory settings). I wonder, tho, if the modem is old enough that something in your new computer is not communicating with it.
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Macbook Pro won't connect to wifi while all other macbooks in house will.

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