Ethernet port not working after installing Leopard

All fine when in 10.4.8, after installing 10.5 it no longer works.
Says cable is unplugged, checked the cable on other devices and the router and cant see any problems on system profiler.
Any ideas ?

Cat6 cables are not required or beneficial for most home situations. The purpose of Cat 6 cables is to be able to work around a electronically "noisy" area, or to pinch out a little bit more throughput in a Gigabit network.
If you change a cable to Cat6 it will still work at the Cat5 or 5e standard if any of your other cables are not Cat6.
I'm running GB ethernet using hundreds of feet of Cat5e wiring into several rooms. No problems with Leopard.

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Hi everyone.
I'm getting a strange Finder behavior on my Intel iMac (not the newest version) after installing Leopard. The thing is, after instalation, when I start the computer, the top bar on the screen starts blinking, and there's no way to open a Finder window. And it stays like that forever! I tried to open Finder from the Dock, but the blue dot of the active programs blinks 3 or 4 times and then disapears. Plus, the only way to access the Apple logo on the corner to switch the computer off or restart it, is by opening one other program from the dock (in this case I have Safari running), because this way the top bar stops blinking.
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anamorphis wrote:
Hi everyone.
I'm getting a strange Finder behavior on my Intel iMac (not the newest version) after installing Leopard. The thing is, after instalation, when I start the computer, the top bar on the screen starts blinking, and there's no way to open a Finder window. And it stays like that forever! I tried to open Finder from the Dock, but the blue dot of the active programs blinks 3 or 4 times and then disapears. Plus, the only way to access the Apple logo on the corner to switch the computer off or restart it, is by opening one other program from the dock (in this case I have Safari running), because this way the top bar stops blinking.
So, I thought I should try to update Leopard to 10.5.1, and this could solve the problem. But no. It searches for new software updates, tells me that there are new updates, but I cannot see them nor install them!
This is really weird and annoying!
Anyone had this problem? Please, help me.
P.S.: Yes, I've tryed a second install of Leopard. Same thing!
Do NOT install any updates until you resolve the problem, which is unrelated to any updates. Updating a computer that is not working correctly will only make the problems worse, never better.
If this is the second install, was it on an erased HD or did you import your previous programs, etc?
It sounds like you might have some errant 3rd party software running.
Did you run a disk check and file permission verify/repair before installing?
Check your startup program window and remove everything there. Write them down so you can put them back later.

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JHeinz,
Glad to hear that contacts are working again.
Other troubleshooting steps involve refreshing the iTunes and iCal plist files.
1. Quit iTunes and find the com.apple.iTunes.plist file in your Macintosh HD/Users/yourusername/Library/Preferences Folder. Drag the file to your Desktop, log out/in or restart and check iTunes for expected behavior.
2. Quit iCal and find the com.apple.iCal.plist file in your Macintosh HD/Users/yourusername/Library/Preferences Folder. Additionally find the Calendar Cache file in your Macintosh HD/Users/yourusername/Library/Calendars folder. Drag both of these files to your Desktop, log out/in or restart and check for desired behavior.
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;~)

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Hello! Since upgrading to 10.6.6, I have lost my Ethernet port connectivity. AirPort is working fine.
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-used Diagnostic button
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Marvell Yukon Gigabit Adapter 88E8053 Singleport Copper SA:
Name: ethernet
Type: Ethernet Controller
Bus: PCI
Vendor ID: 0x11ab
Device ID: 0x4362
Subsystem Vendor ID: 0x11ab
Subsystem ID: 0x5321
Revision ID: 0x0022
Link Width: x1
BSD name: en0
Kext name: AppleYukon2.kext
Location: /System/Library/Extensions/IONetworkingFamily.kext/Contents/PlugIns/AppleYukon2 .kext
Version: 3.2.1b1
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Model Identifier: MacBook1,1
Processor Name: Intel Core Duo
Processor Speed: 2 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 2 MB
Memory: 1 GB
Bus Speed: 667 MHz
Boot ROM Version: MB11.0061.B03
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Message was edited by: bhughes2172

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If the user account is associated with an Apple ID, and you know that account password, the Apple ID can be used to reset your user account password.
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Please click "KUDOS" if I have helped you and click "Accept as Solution" if your problem is solved.
Signature:
HP TouchPad - 1.2 GHz; 1 GB memory; 32 GB storage; WebOS/CyanogenMod 11(Kit Kat)
HP 10 Plus; Android-Kit Kat; 1.0 GHz Allwinner A31 ARM Cortex A7 Quad Core Processor ; 2GB RAM Memory Long: 2 GB DDR3L SDRAM (1600MHz); 16GB disable eMMC 16GB v4.51
HP Omen; i7-4710QH; 8 GB memory; 256 GB San Disk SSD; Win 8.1
HP Photosmart 7520 AIO
++++++++++++++++++
**Click the Thumbs Up+ to say 'Thanks' and the 'Accept as Solution' if I have solved your problem.**
Intelligence is God given; Wisdom is the sum of our mistakes!
I am not an HP employee.

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Ethernet port not working after installing Leopard

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