Internet crashes on my 27 inch 3.4GHZ 2011 model iMac while on all my 3 other devices I still have connectivity

I have wireless network run via BT hub. However because of ongoing connectivity issues connect the main machine via the ethernet. I no longer use my Airport extreme.
Since I first bought this machine I have had connectivity issues. At first thought it was BT & while initially it was I can now isolate the issues to this specific machine.
I find that in the morning the connection has gone down & the only way to get it back is to restart everything. I can however get connected through all my other devices.
I am using Lion & safari or chrome or firefox! Have regular clearences of my cache.
Anyone else experienced this & can offer any solutions it would be appreciated before I have to box up the machine & trundle to my nearest Apple store (my 90 days home support is expired).
Thanks

Have you checked your router settings to see if the system has the same IP as another device on your wifi network, I had this when I switched on my iphone my Xbox 360 would stop working, so I had to reserve an IP for both the iphone and the 360, and now I religiously do it for all my devicese on my network.
Among some other things wrong with my Lion macbook pro I had a simlar issue with my internet dropping even with a reserved IP, I put it down to the laptop becoming unstable and rebuilt the OS using lion startup command cmd+R if you decide to go down this route because you feel it's not the router at fault with IP's then make a time machine backup of all of your documents and start again, I suggest if you do the cmd+R route you also plug straight into your hub.

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I own a 13-inch MacBook Pro and for the past day, my wifi on my laptop says I only have two bars of connection and is running very slow,but all of my other devices such as my iPhone and iPad are connecting perfectly to the wifi. How can I fix this? Thanks

I own a 13-inch MacBook Pro and for the past day, my wifi on my laptop says I only have two bars of connection and is running very slow,but all of my other devices such as my iPhone and iPad are connecting perfectly to the wifi. How can I fix this? I have tried to shut my laptop off and let it rest and I have also re-started my wifi router three different times. Someone please help me with this problem so I can begin to use my laptop again as I take it to school and use it for class.
Thanks so much!

FCP, and all software on OSX, has a few different "preference" files (the extension is .plist), which store all your user settings. Each time you resize a window, change a setting, anything, this file is re-written. Kinda easy to see how they would become corrupt every now and then.
-Close FCP
-Navigate to User>Library>Preferences and delete com.apple.FinalCutPro.plist
-Navigate to User>Library>Preferences>Final Cut Pro User Data and delete Final Cut Pro 5.0 Prefs
-Empty your trash
Relaunch FCP and see if that worked.
Download FCP Rescue to make this process easier in the future. When you have FCP running really smooth, open FCP Rescue and create a backup of your preference files. If it starts acting wanky, just run FCP Rescue and Restore your backup preferences. Works really slick, and it's free.
EDIT: Or use the really simple explaination that X posted as I was typing.

HT1296 my computer crashed and I lost all my music in iTunes, I still have all of it on my Ipod Touch, how can I get my music from the Ipod back into itunes?

my computer crashed and I lost all my music in iTunes, I still have all of it on my Ipod Touch, how can I restore my music back to iTunes from the Ipo Touch?

How to use your iPod to move your music to a new computer

My iMac is able to use my wireless internet from my airport extreme, however, no other devices(iphone, ipod) will connect. The network shows up, but the indicator just spins without ever joining.

My iMac is able to use my wireless internet from my airport extreme, however, no other devices(iphone, ipod) will connect. The network shows up, but the indicator just spins without ever joining.
I have tried resetting my airport extreme, creating a new network, etc nothing seems to work.

I have a feeling you may be stuck in bridge mode there...
Factory reset the Extreme (so we don't second guess later), and re-set up the extreme using iOS5 on your iPhone.
Set up your Wi-Fi network with your iPad, iPhone, iPod touch, or Mac.
http://www.apple.com/airportexpress/features/easy-setup.html

My iOS 6.1.4 is updated. i have other devices connected to wifi hotspot of my iphone5. Though my other devices appeared to be connected and shows an excellent cignal strength, i cannot access internet. hope this will be fixed.

my iOS 6.1.4 is updated. i have other devices connected to wifi hotspot of my iphone5. Though my other devices appeared to be connected and shows an excellent cignal strength, i cannot access internet. hope this will be fixed.

I hope so too. So what have you actually done to fix your issue?

My iPad keeps loosing the internet connection. All of my other devices work. Last time this happened, comcast charged $49 to fix it. They said that it's somethin that I downloaded. How can I get back my internet connection on my iPad ?

My iPad keeps loosing the internet connection. Last time this happened comcast charged $49 to fix it. They said that the problem was perhaps caused by something that I down loaded. All my other devices still connected to internet. Tried to reset my settings. Still won't work. Any advice ?

First, changing your DNS settings could not possibly have any effect on this problem.
When you see an exclamation point in the Wi-Fi menu, from the menu bar, select
 ▹ System Preferences... ▹ Network
Click the Assist me button and select Assistant. Follow the prompts. You may get a warning that Wi-Fi is not available, that you're too far from the base station, or that you're using the wrong password.
Assuming that you've ruled out those possibilities, click the lock icon in the lower left corner of the preference pane and authenticate, if necessary. From the Location menu at the top of the window, select Edit Locations. A sheet will drop down. Click the plus-sign button to create a new location. Give it any name you want. In the new location, set up the Wi-Fi service with the same settings you used before. Click Apply and test.

On my 4gen ipod i have to move close to the internet router to get a better signal.while on my iphone and other devices they connect from anywhere in the house

my ipod needs to get closer to a router to get a better signal and why is that.But my other devices like iphone ipad connet from anywhere in the house to our internet.how do i fix my ipod so i wont have to get close to a internet router to get a better wi-fi signal like other normal devices.

If you have that problem with all networks that tends to indicate that the antenna connection is lose.
http://www.ifixit.com/Guide/Installing+iPod+Touch+4th+Generation+Wi-Fi+Antenna/3 640/1

My MacBook will not connect to the Internet, but all of my other devices connect perfectly.

I have a MacBook and it will not connect to the Internet. It connects to wifi, but then when I open Safari, the page does not load. I have tried forgetting the wifi network, deleting keychain passwords, and restarting the computer, but nothing has worked. Does anyone know what I can do to fix this?

Did you set DNS Server properly?
System Preferences -> Network -> Advance... -> DNS

HT4623 when trying to connect to internet i get an internal error message. All other devices but this phone connects fine.

For some reason this i phone will not connect to our wireless internet. All other iphones connect. As well as computers. I keep receiving an internal error 500 message. Any help?

I assume you are referring to an error message in Safari. When you look at the phone, are you seeing the wifi signal fan by your carrier name? If yes and you go into Settings, wifi and tap the blue arrow to the right of the network, are you seeing IP information? Have you ever been connected to this network in the past?

My wireless internet is working with all of my other devices but my imac will not connect to the network?

Can anyone help? My wireless connection is working on both my iphone4S and my ipad2, but my Imac will not connect to the network.

First run Software Update to make sure your iMac is up-to-date.
Even though things are working OK on other devices there may still be issues with your modem or router so it's best to start there. Locate the manuals on both devices and reset each. Do the modem first then the router. Next make sure the router has up-to-date firmware. If the problem continues after updating resetting and updating both devices then download and install iStumbler and let it run for about 30 minutes. iStumbler will scan your area for the Wi-Fi networks being used, pay attention to the channels each network is set to. Most routers are pre-set to channels 5 or 6 and if you are in a congested area and all the routers are set for channel 5 or 6 then you can see where there might be a problem. Set your router's channel to one not being used in your area, you have at least 14 channels to choose from. Also check to see if your router is using 802.11n, if it's not then it would be wise to upgrade the router to a faster device.
Next is if you are still having issues the problem could be your ISP's DNS settings. If you want to learn about DNS please read CNET's DNS Article and MacWorld's DNS Troubleshooting . Then use the instructions below to reset the DNS settings:
1. System preferences
2. Network
3. Click Advanced
4. Click DNS tab
5. Click + sign
6. Add 208.67.222.222
7. Click + sign
8. Add 208.67.220.220
9. Click OK.
10. Exit System Preferences

Internet crashing on Lion OSX...

Does anyone know more about internet crashing on Lion OSX?
Since I use Lion I'm feeling all Microsoft again. Things suddenly move, are being deleted or my iMac crashes. If you're about to update... don't! It will save you money, but most of all; a lot of frustration!! Even wanting to go back to Windows (...!!!)
But now I have the Lion version, I have to deal with it. So, what goes wrong now.... my internet connection (only on my iMac, NOT on my iPhone, iPad or any other device) stops from time to time. I have to restart my iMac to make it work again.
Does anyone now an easier / faster way? / Now how to reach Apple people to fix these bugs (can't believe I'm asking this)

Don't know, but try a Reset [Hold the Home and Sleep/Wake buttons down together for 10 seconds or so (until the Apple logo appears) and then release].

My air keeps on shutting down, and the internet crashes frequently too, what do I do?

My internet will crash randomly as will my computer.
I am not downloading any viruses, my wifi works perfectly fine for all my other devices and I have reported the problem many times.
Is there anything I can do or should I just go to the Apple store?

If you have more than one user account, you must be logged in as an administrator to carry out these instructions.
Launch the Console application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Console in the icon grid.
Select the most recent panic log under the heading System Diagnostic Reports on the left. If you don't see that heading, select
View ▹ Show Log List from the menu bar. Post the entire contents of the panic report — the text, please, not a screenshot. In the interest of privacy, I suggest you edit out the “Anonymous UUID,” a long string of letters, numbers, and dashes in the header and body of the report, if it’s present (it may not be.) Please don't post shutdownStall, spin, or hang reports.

We have three computers in the house--2 crashed before I could deauthorize home sharing. Now, with my new MacAir, the total computers in our household is 3 but home sharing will not allow me to add the other device.

We have three computers in the house (iMac, MacAir and the new MacAir I just received) in addition to 2 iPhones and 2 iPads. 2 Macbook Pros are no longer in use (both crashed before home sharing could be deauthorized) but now I have reached my maximum device allowance (5), even though only 2 computers are currently active. How can I reset the authorized computer numbers?

You can de-authorize individual computers, but only by using those computers. Otherwise you can "deauthorize all" from your iTunes account.
Open iTunes on a computer
From the Store menu, select "View my Account..."
Sign in with your Apple ID and password.
Under "Computer Authorizations" select "Deauthorize All".
Authorize each computer you still have, as you may require.
You may only do this once per year.
After you "deauthorize all" your authorized computers, authorize each one as required.

I can no longer connect to the internet from any other device.

Having successfully upgraded to OS X Mavericks from Snow Leopard I can now no longer connect to the internet from any other device. I have an iPhone 4S, a Galaxy Tab, and an internet radio, none of which can connect to the internet since the upgrade. They connect to my BT Home Hub without a hitch, it’s just that they do not connect at all to any website. All was fine before the update.
The upgrade was to my iMac and that’s fine, no connection or surfing issues.

Hi t0ad1e,
The article below may be able to help you troubleshoot your Wi-Fi issue with the iPhone:
iOS: Troubleshooting Wi-Fi networks and connections
http://support.apple.com/kb/TS1398?viewlocale=en_US
Reset network settings by tapping Settings > General > Reset > Reset Network Settings.
Note: This will reset all network settings including
previously connected Wi-Fi networks and passwords
iOS and OS X: Recommended settings for Wi-Fi routers and access points
http://support.apple.com/kb/HT4199
I hope this information helps ....
Have a great day!
- Judy

My hard drive crashed and i lost all my music, still have it on my itouch though. any way to put my music from my itouch back on my computer?

I have a Windows 7 computer. One of my hard drives crashed and i lost all of my music. I still have everything on my itouch. Is ther any way I can transfer my music back to my computer?

Hello sethou22,
Thanks for using Apple Support Communities.
For more information on this, take a look at:
iTunes Store: Transferring purchases from your iOS device or iPod to a computer
http://support.apple.com/kb/ht1848
Best of luck,
Mario

Internet crashes on my 27 inch 3.4GHZ 2011 model iMac while on all my 3 other devices I still have connectivity

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