Trouble connecting iMac to internet after Time Machine Reboot

Bear with me here guys.... I recently went to download Aperture onto my Mac but found that I required Mountain Lion, so I purchased it to upgrade from Snow Leopard. Having download the new OS I started the installation and it failed as it appears I have a fault with the Hard Drive; though my Mac gad operated just fine previously. As everytime I restarted my computer it wanted to start installing Mountain Lion but couldn't complete due to HD error; I rebooted via the Snow Leopard CD and loaded my last Time Machine save. I now have the Mountain Lion icon sat on my dock awaiting installation, though after I've had the HD fixed first obviously.
So having just reloaded the OS and rebooted via my Time Machine Backups (For which I use a USB connected Samsung External Drive) my iMac will connect to my wireless network via Airport just fine. Loading the internet via Safari is another matter. It will load the window but will remain blank white with the pinwheel spinning. Eventually I get the message that another computer using the same IP address is already on the network.
Having read the threads on here I have already tried resetting Safari, restarting my Router, I have double checked all the IP adresses of my another connected devices (none hold the same IP address as the iMac) have been round in circles in Network Settings Renewing the DCHP Lease, trying the set the IP address manually, turned everything off and on again and I have spoken with my service provider and they have not been able to tell me any more than the threads on here; and so here I am at a loss now.
Any or advice would be really appreciated.

Just a few more ideas...
Searching the web, I've found some possible fixes, some of which you have probably already tried.
Try connecting directly to the router with an Ethernet cable.
Check your wireless security (you should use WPA2, it's the strongest). Someone could be using your network, so try changing the password and see if that helps (this can be a pain if you have a lot of devices).
Flush the DNS cache:
For Lion and Mountain Lion: Enter the following command into Terminal:
sudo killall -HUP mDNSResponder
For Mavericks:
dscacheutil -flushcache;sudo killall -HUP mDNSResponder
Update the router firmware if it is out of date. Also, you can reflash with the current firmware, which [i]might[/i] help.
Hope some of these help, if not best of luck with getting the fault sorted out.

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I sit here on a new computer under a different user name from my old backup. I can't get internet on my old user name. I realized my internet was working fine when I logged into my old computer at the same time to see if it was an internet issue or a computer issue. I'd hate to have to transfer all of my old info from my old user name if there is an easy fix for this that I'm not seeing.
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it's all the same as far as I can tell. No sharing, and I only use airport and one network.
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Hay People , i got a problem, anyway didnt make a copy of system when first purchase, so i had a problem with the registry, that showed up on one of the cleaning scans, so i told it to fix it after several times it said fixed, but then would not go to any web page, said no data, so long story short, i did a one button restore, it said it would wipe all saved data, etc. i did it, now when i restart win 7 it ask if i want to start safe mode, etc, i just say start normal , it shows win logo, fan runs etc, then blank screen? keys have no effect, so if i start with f2 pushed it comes up lenovo name on screen, then sign at bottom screen says windows is loadinfg files, the the lenovo rescue system 3.0?? i am stuck from here, if i press the one key it runs for about 6-10 min reloading stuff says at 2 gigs min, but does not recover from there, and if i press the driver button, it will not reload the drivers from the cd i have, so i press the system setup button, and it takes me to network setting or password mangment, press network setting it ask for info that i dont know, like ADSL or LAN etc any help plz

hi tony,
Welcome to the Forums.
After doing a system recovery via the OneKey Recovery (OKR) feature, it should start first in OOBE (Out of Box Experience) where it ask you to setup Windows for first use. If it doesn't go there, try to perform the OneKey Recovery via the F2 key one more time.
If same issue occur, it's possible that:
1. The OKR image is faulty
2. The HDD might be showing signs of failure as the OKR image is stored on a hidden partition in the hard drive.
I recommend you contact lenovo so that they can send you a recovery disc and/or send someone over to take a look at the system.
Here's the support hotline:
Telephone number: 1-877-453-6686
Hours of operation: 24 hours a day / 7 days a week
Regards
Did someone help you today? Press the star on the left to thank them with a Kudo!
If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"! This will help the rest of the Community with similar issues identify the verified solution and benefit from it.
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Is there a way to put system to sleep after Time Machine runs?

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William Donelson wrote:
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I was able to get it to work. Thanks for your help. It's unfortunate the two applications do not work well together. This is what I did:
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I am not very sure the RAW support version that I use in the past.
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http://support.apple.com/kb/ht5621
Using your Apple ID for Apple services
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http://ipadinsight.com/ipad-tips-tricks/potential-quick-fixes-when-your-ipad-won t-connect-to-your-wifi-network/
~~~~~~~~~~~~~~~~~~~~~~~~~
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https://discussions.apple.com/thread/4823738?tstart=240
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http://www.theipadfan.com/workaround-ipad-wifi-issues/
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http://tabletcrunch.com/2012/10/27/fix-ios-6-wifi-problems-ssid/
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Apple's iOS 6 Wi-Fi problems
http://www.zdnet.com/apples-ios-6-wi-fi-problems-linger-on-7000004799/
~~~~~~~~~~~~~~~~~~~~~~~
iPad: Issues connecting to Wi-Fi networks
http://support.apple.com/kb/ts3304
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http://ipad.about.com/od/iPad_Troubleshooting/a/How-To-Boost-Your-Wi-Fi-Signal.hmL
Troubleshooting a Weak Wi-Fi Signal
http://ipad.about.com/od/iPad_Troubleshooting/a/Troubleshooting-A-Weak-Wi-Fi-Signal.htm
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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
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http://osxdaily.com/2012/03/21/fix-new-ipad-3-wi-fi-reception-problems/
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http://appletoolbox.com/2010/04/ipad-wi-fi-problems-comprehensive-list-of-fixes/
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http://thehowto.wikidot.com/wifi-connect-ipad
10 Ways to Boost Your Wireless Signal
http://www.pcmag.com/article2/0,2817,2372811,00.asp
Fix iPad Wifi Connection and Signal Issues http://www.youtube.com/watch?v=uwWtIG5jUxE
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.
Some Wi-Fi losses may stem from a problematic interaction between Wi-Fi and cellular data connections. Numerous users have found that turning off Cellular Data in Settings gets their Wi-Fi working again.
You may have many apps open which can possibly cause the slowdown and possibly the loss of wifi. In iOS 4-6 double tap your Home button & at the bottom of the screen you will see the icons of all open apps. Close those you are not using by pressing on an icon until all icons wiggle - then tap the minus sign. For iOS 7 users, there’s an easy way to see which apps are open in order to close them. By double-tapping the home button on your iPhone or iPad, the new multitasking feature in iOS 7 shows full page previews of all your open apps. Simply scroll horizontally to see all your apps, and close the apps with a simple flick towards the top of the screen.
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

Installed iMac software removed with Time Machine restore

I just bought an iMac and restored a Time Machine backup when I first started the machine. The iMac is now a clone of my old Powerbook G4 (Time Machine saved the day).
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Apple is sending me the iLife disc since it does not come separately on either of the 2 iMac install discs. I'm wondering what other applications (other than the iLife suite) come stock with the iMac that I am also missing?

If your G4 was up-to-date with Leo 10.5.4, the new iMac should be as well.
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Trouble connecting iMac to internet after Time Machine Reboot

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