Dead ethernet - options? solutions?

My ethernet connection on my G5 seems to be have failed. Yesterday morning it was there; after work it was gone. Running Diagnostics from the Network settings panel tells me that there is no cable connected to my ethernet port, which of course there is.
Used the same cable (and a 2nd cable, just for good measure) to use the same ethernet set-up on my old PC, and it works fine, verifying that my ethernet cable is good, my modem is good, and my cable provider is still feeding me my internet juice.
Powered down G5 and cable modem. Reset PRAM. Repaired disk permissions. Reset the PMU. Did the Hopi Indian Ethernet Connectivity Dance. No results.
So, have I definitively determined that my ethernet port is dead? Or are there other things to try?
And, assuming my ethernet port is dead, what are my options?
I'm hoping that under AppleCare I can get this thing fixed, but I'm guessing there are hoops to jump through, so I'm looking for a temporary solution while I wait. Is there a way to make my mac and cable modem talk to each other through USB or Firewire? A way that's cheaper than the other option I see: buying an AirPort base station. Don't get me wrong, I like the idea of the AirPort base station, but we're a one computer household right now (I don't count the rickety Win98 machine I used to test the cable modem), so dropping a couple hundred dollars to broadcast my internet connection 2 feet seems like overkill.
Any advice would be greatly appreciated. Thanks.
iMac G5 Mac OS X (10.4.4)

Just an update, 'cause I hate when I search the forums, find people asking the same questions as me, and never find anyone posting how they resolved it.
Talked to the Apple Help desk, they had me do many things that I had already tried: play with the system settings and ping the local computer. The ping went normal, but no tweaking of the system's network settings could bring the port back to life, so the support person had my throw out a system folder/file that held the network settings and then reboot (sorry, not sure what file was trashed). After reboot, I no longer had the "ethernet is not plugged in" message. Instead, it acted like the ethernet didn't exist at all. I could check it or uncheck it in my available ports and move it around, but it wouldn't show up at all in my port synopsis on the front page of my network settings.
They wanted me to do an Archive and Install wihtout saving User Preference (or whatever the lingo is) of the OS. Instead (because I don't know how to revive the archive) I just installed the base OS from the DVDs on to an external firewire drive and booted from that. Still no success, and tech support still wanted me to do the Archive and Install, so I did. And the ethernet port remains dead. At this point they said to take it into the shop and have it fixed as it's still under warranty. That's my job for this weekend. I'll let you know how that goes, but it doesn't give much hope to folks with the same problem. I was hoping for a software fix I could do from home, but it looks like the port is really and truly dead.
A related question: Is there an easy way to revert to an archived OS, or do I have to re-add all the users, upgrade the OS back 10.4.6, and pull those folders up manually?

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Mini ethernet port as a solution to imac dead ethernet port

I have an old imac 2002 version and it works great but the ethernet port is dead ...not sure why...but I have checked the cables and connections with another computer and they are fine...So assuming that the port is dead
Can I purchase a mini and use the ethernet port as my connection to the internet via dsl modem and still use my imac...what I'm wondering is can the mini act as a second hard drive and can I network it to my imac via firewire and the use the etherport from the mini to get on the internet....directing it all through my imac?
I have been told in order to get my imac to connect with a dead ethernet port I need to purchase a new motherboard. That seems like a simple solution...but my imac works great except the ethernet...so if I can find a solution that will just offer me a ethernet connection to the internet and still let me use my imac and give me more memory ...all the better...
I am not well versed on the mini....So I need some expert advise as to whether it could be a alternative solution...that would also give me additional harddrive.
Help!

Yes indeed. Your plan will work (I have done similar with mini/powerbook and powermac).
In a nutshell - set up the new mini to use the ethernet. Once the network is running, go to Sharing preference pane and select the internet "tab". Choose to share the Built-In Ethernet with the Built-in Firewire - and click start.
Then connect the mini to the iMac with a firewire cable. Set the iMac to use firewire for its network.
The only possible gotcha is if you are not on the latest OS (this should work back a version or two - but I don't recall when I first did this). Second gotcha might be the firewall on the mini. You may have to enable logging to see if the firewall is preventing the iMac to connect in and through to the internet. If so - you have to live with opening up some ports on your firewall or learn how to configure that one iMac to get in and not the rest of the world (assuming you don't have a router or other firewall device to protect the new mini.)
Cheers and good luck.

Ethernet option missing in Appletalk control panel

We recently picked up some Power Mac 5200/LC's to add to our existing Macs. Some of them have OS 7.5 and some have 7.6.1 but they all have ethernet cards. The ones with 7.6.1 have an option in the Appletalk control panel to select ethernet and work fine. The ones with 7.5 have no option for ethernet in the control panel. Do I need to upgrade the OS or is there some sort of driver that needs to be installed? Any ideas?

We recently picked up some Power Mac 5200/LC's to add
to our existing Macs. Some of them have OS 7.5 and
some have 7.6.1 but they all have ethernet cards. The
ones with 7.6.1 have an option in the Appletalk
control panel to select ethernet and work fine. The
ones with 7.5 have no option for ethernet in the
control panel. Do I need to upgrade the OS or is
there some sort of driver that needs to be installed?
Any ideas?
There are 2 reasons for this:
1. an Ethernet option doesn't show up because there is no ethernet card installed in the Macintosh
2. The card is installed but the Apple Ethernet drivers are not installed into the Extensions folder of the active Start up disk's System Folder.
Solution:
1.Verify that the Mac does infact have an ethernet card.
2. Verify that the Apple Ethernet drivers are installed.
these items should be inside the Extensions folder:
AppleTalk version 58.1.5
Apple Built-In Ethernet driver file version 1.0.1
Apple Ethernet NB driver file version 1.0.1
Apple Ethernet LC driver file version 1.0.1
Apple Ethernet CS driver file version 1.0.1
note; the LC driver for and LC Mac
NB is for Nubus Macs and CS is for the CS line of Macs.
Mac OS System 7.5 does not install all the drivers neccessary for every Mac to use an Ethernet card, Download and install "Network Software Access" here Downloads
or upr grade to Mac OS 7.5.3.
Open Startup Disk>Apple Extras>Network Software Selector. Be sure Open Transport is on and if you are using a router upgrade to OT 1.2.2 or later as 1.0 is not fully supported with all routers.
If the Ethernet card is not physically installed in the Mac when the Mac OS System Software is installed, then the installer will not bother installing the Ethernet drivers on an "Easy Install". With a Custom Install you can select these drivers or alternatively add the card then re-install Mac OS 7.5. and upgrade all the way to 7.5.5*
*Requires extensive downloading but is free from Apple's older download site
http://www.info.apple.com/support/oldersoftwarelist.html

Ethernet option doesn't show up in internet sharing.

I'm trying to set up a network via the ethernet port on my iBook G4. I found out some of how to do this, but I can't get past what is usually step two of the tutorials. When I go to System Preferences>Sharing>Internet Sharing and I go to check the "Ethernet" box, it isn't there! Does anyone know how to fix this?

I am guessing that because you are using a USB internet connection, that Sharing thinks you are getting your internet via your ethernet device, so it does not include that device in the list.
My Verizon DSL modem comes with an ethernet port (It might have USB, but I ignore that). I then have that ethernet port plugged into a home WiFi base station which then redistributes my internet connection to all the other systems in my home.
If you have an ethernet option from your Verizon provided broadband modem, then the simple and robust solution is to get an inexpensive home WiFi base station and use that as your home router for your Mac as well as your Xbox.
Now if you want to continue to play with using your Mac as a router, then start with System Preferences -> Network, and see if you have a "Built-in Ethernet"?
Does the fine print under the "Built-in Ethernet" say "Inactive"? If it does then this port has been explicitly disabled. Use the little Gear icon at the bottom of that column and select "Make Service Active".
If you have a "Built-in Ethernet" and it is NOT "Inactive", then you could try duplicating it via the Gear icon at the bottom of the column. Maybe that will give you an Ethernet sharing option.
But again, your life would be so much easier if you put a home router between you and your Verizon internet connection. Besides a home router is also a hardware firewall that does not allow internet bad guys into your home network.

10.5.2 resurrected my dead ethernet card as 'ethernet 2'?

not too long after leopard came out, i tried to set up time machine, and kept getting errors. come to find out, i had a 'dead' ethernet card in my g5 powermac (it had worked just prior to upgrading to 10.5) and time machine relies on the MAC address. so a couple days ago i upgrade to 10.5.2, and all of the sudden my ethernet card is working again (still can't get time machine to work but i'm working on it).
what's strange (besides ethernet being somehow killed and resurrected by 10.5) is that in system preferences under 'network', the normal 'ethernet' side tab still seems to not be working, but instead i have an 'ethernet 2' tab that is the operational ethernet. does anyone have any idea what's going on, or has this happened with anyone else?

I'm sure it isn't an issue with my Airport Express, since no networks are showing up for me. It's not my network. It's the Airport card in my computer (or better yet, it's how the OS interacts with the Airport card). When I restart everything is fine. My interim solution is to change my power settings so that it doesn't put the hard drive to sleep, but I'd rather not have to leave it like that.

No Ethernet Option when Trying to Set up Internet Access

I recently turned my 6400 back on after a few years of down time. I'm trying to set things up so I can use the computer to store files as well as run some old apps. To do this, I need to get it recognized on my home network but I can't even get to the ethernet option. The cable is in and it works (I tested it on my other Mac) but when I go to internet setup assistant or AppleTalk or TCP/IP control panel, the ethernet option does not show up in any of the pull down menus. It's been a while since I worked with an older OS, but I am at a loss what to try. I even did a clean install on OS 8.5 to see if that would help. It didn't. Last time the computer was on (a few years go), it was hooked up to the internet and worked fine. Any help would be greatly appreciated. Thanks.

You didn't indicate whether the ethernet card in your 6400 is an Apple COMM slot card or a third-party COMM slot or PCI slot card. If the latter, you'll need to install a driver. If the former, the driver should have been installed, if the card were present at the time you installed OS 8.5 (assuming that you used a universal installer disk and not another Mac's Restore CD). Once you get this problem straightened out, I'd recommend downloading/running the Mac OS 8.5.1 Update or the OS 8.6 Update.
Prior to retiring your 6400 for several years, did you disconnect and remove the internal 4.5-volt alkaline battery from the motherboard? When they become fully-discharged, those alkaline batteries are prone to leakage and the resulting corrosion can ruin the motherboard. It's a Rayovac 870 or 871 and attaches to the motherboard with velcro. If an old battery is still installed (and hasn't leaked), I'd replace it with a new one.

Is there a fix for a dead ethernet port besides a new logic board?

My ethernet port went dead on my IMac. I unplugged the ethernet cable and plugged it into my laptop and it worked instantly. I am still able to connect wirelessly. I bought an apple USB to Ethernet converter and plugged it in. It worked for about 3 days and then it went dead. Once again I was able to unplug the ethernet cable, plug it into my laptop and instantly had a connection. Is there a fix for a dead ethernet port besides a new logic board and if not how do I figure out which logic board I need?
Thanks
Step

This problem baffled me. I kept getting the "ethernet cable unplugged" error after testing my cables good. Was abut to write it off as port gone bad when I found this thread.
The YouTube video reference above fixed my problem. (http://www.youtube.com/watch?v=u1P6X87qArs)
Basically go to SETTINGS/NETWORK. Then highlight your ETHERNET port and click the ADVANCED button. From there click the HARDWARE tab.
Set
CONFIGURE to MANUALLY
SPEED to whatever your ethernet speed is, in my case 1000baseT
DUPLEX - FULL DUPLEX, FLOW CONTROL
Leave MTU at Standard
Hit OK.
Then don't forget to hit APPLY. I didn't do this the first couple of times assuming hitting OK applied these settings. You gotta hit APPLY.
In about two seconds, my Ethernet connected again.
I went back and reset it to AUTOMATIC just to test and after doing so got the cable unplugged error again. So I am leaving it on manual and it's working.

Hi, i want to control my vi from multiple systems using ethernet options can any body tell me how to do that? thans in advance

hi, i want to control my vi from multiple systems using ethernet options can any body tell me how to do that? thans in advance

There are multiple ways of doing this. Here are some of them..
The Web Publishing tool allows you to publish the front panel and you can control the front panel remotely.http://www.ni.com/white-paper/2911/en/
The TCP/IP socket can allow you to pass codes "strings" to another computer. Lookup the server client example.
regards,
Gautham

MBP Early 2011and half dead Ethernet.

Hi,
My broadband internet modem (ADSL2+) is wired to the AirPort Extreme which in turn is wired to another airport express in another room. This creates a roaming network and all works well. I have a wired connection from the extreme to my MBP and the Ethernet on the MBP detects the connection just fine subsequently getting an assigned ip et al.This provides good speed and stability. I use wifi for all my other devices like iPhone, iPad and some other wifi devices.
A few days back my ISP had issues and the technician came over to resolve the issue with the phone line. I then realised that my my MBP would not connect directly to the ADSL modem using Ethernet (assuming I had no wifi). I have tried different cables but nothing would get the Mac's Ethernet to detect the cable. It would just say cable unplugged. The same doesn't happen if I take a wired connection from the router using the same cable. I have also tried a different modem and the mac still won't connect directly to it. I would have thought the Ethernet is malfunctioning but what confuses me is that a wired connection from the router works just fine. As such I am forced to use wireless and cannot connect my mac to the modem directly. Is this a fried Ethernet port? If yes how does it work when a wired connection is taken from the router.
Here is what I have tried so far,
- different cables.
- different modem
- different laptop (windows) - in this case the same cable and modem would work just fine with the windows laptop.
- smc reset on mac
- various settings on network preferences for LAN, Manual, automatic, MTU size, half full duplex arc.
- setting the service order
- disabling and rent bling the service.
A dead Ethernet is not even the last thing I would want as my mac is out of warranty and replacing the logics board would make a big whole in my pocket,
Any help on this would be much appreciated.
Thanks in advance.

It often won't even boot far enough to start booting from the hard drive; so I doubt it's a dead HD.
Plenty of space was left. At last check, 20 GB. Probably a little less than that now, but not significantly so.
My restore discs are in storage at the moment, I'll be trying to dig them out later. But again, I can boot to Target Disk Mode; and it runs just as long as a "normal" boot would. When it crashed in TDM, the screen changed to static before it turned the screen all the way off. A second time, (since writing my first message,) booting into TDM crashed by merely 'freezing' the display, with the FireWire logo no longer jumping around, and the disk became unreadable from the host system. This is more than just a bad disk.
I will try to boot from the diagnostic disc, but I need to find it first. (Remodeled the home office earlier this year; and everything's all put in places I can't remember...)

Dead Ethernet Card

i have an emac USB 2.0 and im pretty sure my NIC is dead. All I can seem to get is a self assigned ip address. many computers on the network (3 emacs of the exact same model). I have tried these steps
power cycled
direct connection to modem
created new location
pulled the entire /lib/preferences/systemconfiguration
reset PMU and NVRAM
changed to a good known cable
booted to leopard install DVD network utilities
still all i can get is a self assigned ip address. weird failure but still seems like a hardware failure. So if anyone else has an ideas what i can do next, great but im looking for a ethernet-USB adapter that works with the emac. I was thinking the macbook air one but of course they say it ONLY works with a macbook air. SO if anyone knows of a ethernet-USB adapter that works with an emac USB 2.0?

Hello,
Well ok I have one last option for you to try. You can manually put in the IP Addresses because if you assign it, then its still self assigned. Well First reset the modem. It will have the IP Address "192.168.1.0" If you have a router, then unplug it for 30 seconds, and again reset the modem, once the modem restarts, then plug in the router. The router's IP Address should be "192.168.1.1" If you don't have a router, then you should connect your eMac directly to the modem, reset the modem, then type "192.168.1.1" as your IP Address. See if that works. If you have a router, then try this, connect your eMac directly to the LAN 1 Port on the back of the router and use this IP Address, "192.168.1.2" With every step, your Subnet Mask should stay 255.255.255.0 ONLY put in a router IP Address if you are connected to one. If so it will always be "192.168.1.1" Hope this helps.
Regards,
Your Fellow eMac User,
Matt

How do I set up an ethernet interface on MacBook Air - no ethernet option showing in network pane

I need to connect to internet via ethernet as no WiFi in my location. I have tried to add ethernet interface from network settings but no option for ethernet appears when in the network pane.
I have a MacBook Air running OSX 10.7.5
Any advice on how I can do this? Thanks

Have you plugged a USB to Ethernet adaptor in and connected it with an Ethernet lead to a router? After doing this you should see:

Missing ethernet option in TCP/IP settings

I just got a broadband connection... When I plugged it in and went to configure it in CtrlPanel > TCP/IP I saw that the only options for "Connect via" were PPP and AppleTalk. How can I get the drop down list to display Ethernet...
Thanks in advance.

Hi, cjzappleid -
If your G4 model is a G4 (AGP) or G4 (PCI) model, you will need to use a Crossover type cable to connect the Cable modem directly to the Mac.
Later models of G4's have an auto-sensing ethernet port, one which can reconfigure itself to use either a Crossover or a Patch type cable; since the G4 (AGP) and earlier do not have such a port, care must be taken to use the correct kind of cable.
On those models where it does make a difference -
• When direct-connecting an ethernet device (such as a modem) to the Mac, a Crossover type cable must be used.
• When connecting an ethernet device to a Mac through an intermediate device such as a hub, switch, or router, then a Patch type (also called Straight-through) cable must be used.
Article #42717 - Apple products that require an Ethernet Crossover cable
It is difficult to tell one type from another, unless the cable itself is marked. One way to tell one cable from another is to examine the color coding of the wires in the end connectors -
Ethernet Cable: Color Coding Standard

Cisco Linksys E2000 - SSDP does not work on Wifi, only on Ethernet. any solutions?

Hi everybody,
I bought a Sonos multiroom-system, and connected the first player to my E2000 router through Ethernet.
It then gets a dynamic address through DHCP, I can see the Sonos within the network when looking in the admintool of the router.
When I start the Sonos controllersoftware on my PC (XP), the software can not find the Sonos when my PC is connected through Wifi.
As soon as I connect PC to the router with ethernetcable the Sonos is found immediately and can be initialised.
After that, I can disconnect the cable and control the Sonos wirelessly. (as long as I don't close down the controllersoftware for too long)
From what I understood from the sonos.com website, the Sonos sends an UPnP multicast signal on port for SSDP on port 1900 for initial connection. Further communicationsport are described below.
Somehow, this multicast package seems not to be transferred into the wireless LAN, only into the wired LAN.
Does anybody know a possible reason - or even better - a solution or workaround?
Do I have to open some ports, filter some ports?Forward them?
Thanx
Markus
Below are the ports that Sonos uses:
TCP/IP:
80 (Internet Radio, updates and registration)
445 (CIFS)
3400 (incoming UPnP events)
443 (Rhapsody, Napster, and SIRIUS Internet Radio)
4070 (Spotify incoming events)
UDP:
136-139 (NetBIOS)
1900 (UPnP events and device detection)
1901 (UPnP responses)
6969 (Initial configuration)
2869, 10243, 10280-10284 (Windows Media Player NSS)
Solved!
Go to Solution.

So if have the port numbers with you for Sonos multiroom-system then you can do the port forwarding and follow the steps:-
First of all get your Device IP address for which you want to do the Port Forwarding...
Then open the router's setup page click on the Applications and Gaming Tab and then click on the sub tab Port Forwarding then open the ports that you want...
Refer the link : http://media.photobucket.com/image/XBOX%20360%20NAT%20issues/EricScpoc/linksys_setup.png
Then logout from your Router's setup page.. Unplug your Router from the power, wait 30 seconds. Then plug in the Router again.
Try out these settings it will help you out...

10GB Ethernet options for px4-300r and px12-350r

Hello,
I see that third party vendors are listing a 10GB 2-port Ethernet upgrade for the px12-400r and px12-450r. Will this also work in a px4-300r or the px12-350r? Both units have the optional pci-express slots (1 on the px4, 3 on the px12) so it looks like the hardware is there.
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Thank you,
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I just chatted with one of our level 3 agents and he said that the 10GB cards should work with the px rackmount devices. He did not have a part number though since it is fairly new and he had actually already asked our head office for it but is still waiting to hear back from them. I would recommend calling in if you need the part number or possibly asking the retailer/reseller that you bought the device from if they have it.
You can call this number as it is specific to our customers with px12 devices: 866-856-9898
or try our main tech support center: North America Contact Page — Network Storage
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Battery & Dead Ethernet port question

So if my battery is showing no outward signs of getting old but my ethernet port is dead could an older battery cause this? (All other possibilites covered but a new battery... prior to a PCI card purchase... thought I would ask...)

My ethernet port won't work either, so I bought a PCI card. It has the same behavior as my ethernet port. Neither the card nor the port will connect with DHCP anymore (worked for 4 years and stopped a few days ago). If I specify an IP address it will connect manually, however it will only connect me to the router, meaning, I can access the mac on the network with another computer but cannot access the internet on the mac (other computers are connected to the same router and on the internet).
I originally thought it was the battery. Then I thought it was Ethernet port failure until the new PCI card I bought did the same thing. I’ve flashed the PRAM, replaced the battery, and reinstalled OS X. Nothing seems to fix it.
Please help. Thank you in advance.

Dead ethernet - options? solutions?

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