Browsers not working although ethernet connection is good

I have one computer in a lab of 24 that suddenly won't access websites with Safari, Firefox or Chrome. The connection is fine - I can connect via other servers, computers, Remote Desktop, etc. I am able to connect with the Admin login only. The other 5 logins are class logins and none of them work. THis occurs with either ethernet or airport selected. I've checked network settings including proxies and they are the same as all other computers that do work. I also checked Parental Controls whcih is no different from the other lab computers. Any ideas on what's happening? Thanks!

It's an iMac G5 running 10.5.8.

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I baught Seagate Backup plus 2T hard drive to use as my Backup time machine. But its not working when i connect to time machine its not coping files, it keep saying preparing files. Can someone help me please...

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Please read this whole message before doing anything.
This procedure is a diagnostic test. It’s unlikely to solve your problem. Don’t be disappointed when you find that nothing has changed after you complete it.
The purpose of the test is to determine whether the problem is caused by third-party software that loads automatically at startup or login, by a peripheral device, by a font conflict, or by corruption of the file system or of certain system caches.
Disconnect all wired peripherals except those needed for the test, and remove all aftermarket expansion cards, if applicable. Start up in safe mode and log in to the account with the problem. You must hold down the shift key twice: once when you turn on the computer, and again when you log in.
Note: If FileVault is enabled, or if a firmware password is set, or if the startup volume is a Fusion Drive or a software RAID, you can’t do this. Ask for further instructions.
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Hi Joanna 59
Sorry to hear that you are having this issue and Hope you are well;
1.Do you see any light on the back on the printer where the cable is connected?
2. Do you see lights on the back of the router where the cable that comes from the printer is connected?
3.What type of cable are using to connect the printer? Have you try another cable to see if the problem is the current cable.
Please kindly include;
What router are you using (Brand and model)
Operating system i.e. Win 7
Complete Printer model
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You can say THANKS by clicking the KUDOS STAR. If my suggestion resolves your issue Mark as a "SOLUTION" this way others can benefit Thanks in Advance!

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Not picking up ethernet connection

Hi,
I am using a WRT54GS. its and old one about 1 years old was working with my SBC Yahoo SpeedStream DSL modem well.
recently I switched to Cable. Now the CAT5 (rj45) that comes out from the cable modem works well with my HP n6120 office laptop picks up the Ethernet connection well and I am getting the wired connection with no problem.
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I dont understand how come the wired connection working with the laptop and not with WRT54GS. this is a good working model not too much used also.

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+Time Machine: Error setting backup path: Error Domain=com.apple.TimeMachine.Preferences Code=-1 UserInfo=0x1864bdf0 "Time Machine could not be configured. The built-in network interface could not be found."+
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Buttons not working; then losing connectivity on certain apps, but the browser continues to work

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Hi and Welcome to the Community!
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REMOVE YOUR BB BATTERY NOW!!!
Run, don't walk, to this FAQ:
http://www.blackberryfaq.com/index.php/Got_Your_BlackBerry_Wet%3F
Do everything it says, including waiting the maximum recommended time. Applying power to your BB between it getting wet and doing this process reduces the chances of success. Further, the only thing predictable about moisture intrusion into a BB (indeed, any electronic device) is that the results will be unpredictable. I've seen some come back up right away and be fine. I've seen others never work at all. I've seen still others run for a bit, and then die later. And every thing in between.
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http://us.blackberry.com/support/downloads/download_sites.jsp
From a PC, you can install any compatible (e.g., for your exact BB Model Number) OS package to a BB via this procedure:
http://supportforums.blackberry.com/t5/BlackBerry-Device-Software/How-To-Reload-Your-Operating-Syste...
Note that while written for "reload" and the Storm, it can be used to upgrade, downgrade, or reload any BB device model -- it all depends on the OS package you download and install to your PC. You can even use a different carriers OS package by simply inserting, between steps 1 and 2, the deletion, on your PC, of a file named VENDOR.XML. Be sure that you remove, from your PC, any other BB device OS packages as having more than one installed to the PC can cause conflicts with this procedure.
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Good luck and let us know!
Occam's Razor nearly always applies when troubleshooting technology issues!
If anyone has been helpful to you, please show your appreciation by clicking the button inside of their post. Please click here and read, along with the threads to which it links, for helpful information to guide you as you proceed. I always recommend that you treat your BlackBerry like any other computing device, including using a regular backup schedule...click here for an article with instructions.
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WRTU54G-TM T Mobile, works fine in wireless but does not work in WIRED connection

This is really weird. This router has worked fine for little over years. It has it's up's and downs but yesterday. It stopped working on the wired mode. I can see my computers connected on the DHCP list but it does not show internet. On my WIRED computers connected to the router, it says no internet access and cannot find gateway. it is setup as DHCP automatic like it has been for ages. I used the setup wizard with no success. IT SAYS NO ROUTER FOUND, please check connections.
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I tried even wiring it directly to my laptop and it does the same thing. But connecting wireless is perfectly fine and dandy.

All the 4 Ethernet port lights are lit up when nothing is connected to the router.
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What IP address do you get on wired and wireless computer?

Browsers not working although ethernet connection is good

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