IMac Won't Auto Connect To Internet Via Ethernet Cable

I'm Using An iMac OSX Leopard, And When I Turn On My Computer The Internet Isn't Connected Even Though It Works. I Get Server Not Found In Safari And Firefox. I Have To Unplug The Ethernet Cable And Plug It Back In For It To Work, But If I Turn Off The Computer When I Turn It Back On It Doesn't Work Again. When I Open Diagnosis Everything Is Connect Except For Internet And Server Until I Unplug The Ethernet Cable And Plug It Back In. I Tried Using WiFi But The Same Thing Happens; The Internet Works, But It Doesn't Auto Connect Even Though The Computer Is Set To Remember The Network And Connect Automatically. There Is No Firewall On. Are There Any Solutions? Thanks For Your Help.

Have you tried System Preferences/Network/Assist Me/Assistant?
Network locations (Mac OS X v10.6 and later)

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Can't Connect to Internet via Ethernet Cable.

Hi
I've looked around but haven't found anyone with exactly this problem. I can't get my MacBook Pro to connect to the internet via ethernet at my dorm. I am on the same connection with the same cable on a different computer right now, so I know that is not the problem. When I plug the cable in to my MacBook Pro it tells me that the cable IS connected, but when I try to go on a site on either Safari or Firefox, it takes a couple minutes trying and then tells me that I don't have a connection. I guess the problem lies somewhere between the connection and the browser. I am using DHCP (I don't know what that means but that's the default and other posts have said to make sure that that's what one is using) and the "connect using PPPoE" box is not checked. My ip starts out 192 etc. so I assume it isn't self-assigned. I WOULD LOVE ANY HELP YOU CAN OFFER.
I just got back to school today and this is already making this semester pretty awful.

I am having the same issue. Everything was working hunky-dory but then just up and stopped. The Airport works ok, but considering I am leeching off someone else's across the hall, that is not the most reliable solution.
In my Network Diagnostics, the Ethernet connection is given a green light, but the it seems unable to find the internet at all.
I have reset the router several times, restarted my computer several times, and various combinations of the two, as well as changing ports and cables etc...
any suggestions?

"Connected to internet via Ethernet" ... but won't work

Looks like I have it set up correctly. Says "Connected to internet via Ethernet", yet I am getting absolutely no internet. Where have I gone wrong?
Oddly enough, it even says this when there is no ethernet cable plugged into it and is blinking amber.
What is going on?

Assuming you have a cable or DSL modem cabled to the Airport Express ethernet port... pull power to both the modem and the Airport Express for five minutes (or up to thirty minutes if you can stand it). Then plug power into the modem and wait a minute. Then plug power into the Airport Express and wait a minute. Hopefully your connection with your ISP will now have reset, and the Airport Express will get an IP address and show a solid green status light.

Macbook Pro suddenly will not connect to the internet via ethernet cable.

I know this is a long shot... but I figured I would give it a try.
My macbook pro suddenly does not connect to the internet via ethernet cable. Please bear with me, as I am not very tech-savvy - I will try my best to describe the symptoms!
I connect to the internet via ethernet (we don't have wifi). It was working before I went to work, and when I came home I suddenly couldn't get anything to work (I know everyone says this, but I truly didn't mess with anything). Internet browsers just think for awhile and then turn up the 'You are not connected to the internet' error.
I went into my network preferences and curiously, the 'Ethernet' shows a green dot and says 'connected'. However it says 'Authentication server is not responding' underneath the last part that says '802.1X: WPA: eduroam' (I think that is my user profile).
When I go into my 'security' settings I can see that my firewall is off, so that shouldn't be causing any problems.
I've tried restarting the router and computer itself many times. Diagnostics just gets to a certain point and reports back 'Network Diagnostics cannot fix the current networking problems.' I've also tried switching to a different ethernet cable, and I tried both cables out on a PC laptop and it connected without issue. Additionally, I brought my macbook along to a friend's house and it connected to his wifi just fine, so the problem appears to just be with ethernet connections.
I know it's hard to troubleshoot this kind of thing without being there and having a look at the computer yourself, but any tips wouild be greatly appreciated.

As I mentioned above, I am not very tech savvy so I have no idea why a wireless protocol would be showing up there, I'm just listing everything I see in hopes that someone might know something I can try. This is why I am asking for help here - I'm not sure what has happened that has made me unable to connect, especially since it seemingly occured while nobody was using the computer.
I guess I should clarify that I'm not a total hillbilly- normally my firewall is set to 'on', but I set it to 'off' to try and troubleshoot the issues here as I was told that sometimes it can interfere with the computer's ability to connect to the internet. If this is not the case and firewall does not affect anything, I will turn it back on while I try to fix this.
I have tried the method you mentioned above a few times - I actually contacted my ISP earlier this week and they recommended resetting the router like that. They didn't mention any known network issues.

IMac G5 won't connect to internet via Ethernet

So i have an iMac G5 that isn't connecting to the internet via ethernet.
I have already taken a look through all the Network Preferences, tried going through the network port configurations and setting all of that up again, created a new location for it.
I tried turning off the modem, and letting it restart - restarted the iMac - tried to set up all of these settings again.
I also created a test user account to see if it would work there - still nothing.
I hooked my own 17" MacBook Pro to it and it works perfectly. I never had to go through any settings on mine - it just worked as soon as i plugged the Ethernet cable in.
So the modem itself works - because my computer works. What else could be the problem?
I went through the Network Diagnostics on hers - all green dots and it says that the internet connection is working perfectly. It gives me an IP address - but it still won't load a webpage, and it tells me there that i am not connected to the internet. I am all out of ideas.
If anyone can help me with this it would be greatly appreciated. Thank you so much!

What OS you using? 10.5?
My memory of 10.5 is fading so you may need to figure out the vague instructions.
To make this easier to type Macbook Pro = MBP
When testing disable wifi & use ethernet on both machines.
Are both set to use DHCP? Or are you using manual settings?
Compare the IP addresses of the MBP & the iMac when they both use ethernet.
Compare the subnet masks too just to be sure nothing is different.
Does the iMac do any local networking at all? (e.g. is iTunes or File sharing visible on it). see *
Does it see the MBP in the sharing sidebar or can it connect to anything on the local network?
Have you connected the MBP to the iMac using the exact same cable that the iMac connects to the router?
Does the MBP work if connected to the router using the iMacs ethernet cable?
* You will need to enable file sharing to see the shared Mac in the sidebar (or have mother service shared). Enable it in System Preferences > Sharing whilst you test.
If you are have local networking in a functional state it could be…
DNS - what is the iMac DNS set to on each Mac?
Are either of them showing a grey DNS entry in System Preferences > Network? That means the router is supplying that info.

Can't connect to Internet via ethernet

I have two brand new 11" MacBook Airs. I can connect to the internet via ethernet on one and not the other. I little back story...
I previously had two 13" MacBook Pros and had the same issue – one could connect to the internet via ethernet and one couldn't. I used migration assistant when I upgraded to the new MBAs, so I believe I carried over a setting from the previous "problem" comuter to the new one. Interestingly, both of my MacBook Pros connected to the internet via ethernet just fine until, for reasons unknown to me, one day one would no longer work.
When I look at diagnostics, the lights are (from top to bottom): green, yellow, green, red, red
Is it possible to revert some ethernet networking setting to factory?
Thanks for any help you may be able to provide.
Caanan

The same thing has happened to me, it just stopped working. No, I've had this problem for a long time with this machine, but the other day I was downloading some large files, and all the files dropped down to nothing, internet was gone.
It will connect to Wireless, but now I'm even having problems with that.
If I plug in the Ethernet cable but set it to use AirPort, it won't find the web. I have to unplug the cable and it will use AirPort -- not good when I need to access hard drives! It had been working with it plugged in, but it just stopped. (I don't know if it was using the Ethernet or the AirPort at the time.) I wasn't messing with any settings at the time.
Tried restarting, running diagnostics, using different browsers, various websites, didn't help.
It's a MacBook 2,1 -- 2.0 GHz, Intel Core 2 Duo -- 10.4.11
I have a G4, same OS, using the same router, same settings, everything. G4 works perfectly.

Time Capsule connected to internet via ethernet and static IP address

Hi! I'm at my wits end and getting no help from my IT department. I want to use my Time Capsule to create a wireless network within my office. I can directly connect my TC to the internet via ethernet and an assigned static IP address. However, doing so I'm unable to connect to the internet using the created wireless network on my laptop. I've tried using the bridge option for sharing as well as the "sharing an IP address" and neither configuration is working. any thoughts?

I have the same setup; my ISP uses static IP only. No probs configuring a LinkSys router but with TC it's not obvious where to plug in the info. Can't ping the TC router via IP address to setup directly like the LinkSys which would be simple. Is the out of box router address really 10.0.1.1 on the LAN side? I want to use the 192.168 sequence and have changed it but still no success as I can't determine where to put the static IP! Can you give me something specific? By the way, it works fine thru the LinkSys router in Bridge mode.
Thanks,

24" imac 2.4 says connected to internet via airport--but does not

I just got a new 2.4ghz 24" aluminum imac. There are three other macs in my house, all of which connect to our wireless network and are able to browse the internet. This new computer can connect to the network, yet it always has one of two problems: either it says it is connected to the network, but can't access the internet, or it says it is connected to the internet via airport, but when you open your web browser, no such luck. Many times when I open the network preference panel, there is no router number assigned. Sometimes there is. I can connect to other networks in the neighborhood that don't require a password just fine (how I'm writing this). Why can this new machine not connect, when all three of the other macs in the house have no problem?
anyone, please help. this is frustrating.
thanks,
keegan

OK but, like you, my other machines (PowerPC iMac and Power Book) did seem to work OK while the new iMac was playing-up. It was only when I noticed that the Old iMac had not downloaded some podcasts that I started to look at the router. I now remember having a similar problem a few years ago - frequent failure to automatically log-in to the router, occasional failure of manual log-ins and slow/unreliable connection once logged-in. A new router fixed the problem. It's a real pain but there you are. Must remember to keep receipt of current router and kick-up a fuss if it fails within the guarantee period.
Sorry if this doesn't help but I thought it worthwhile posting my experience over the last 2 days.
Have you tried connecting to your router by ethernet?
I'll let you know if the problem returns but all is sweetness and light at present.

Problems connecting to internet via ethernet solved ( ? ! )

Hi,
finally I've got my imac back. They have changed the main board, because I was not able to connect over PPPoE.....Just now I've set up the machine and have tried it out ...f..... still the same problem.... then I've changed the location , I mean I changed to the network location the service has used to test the system before returning back to me.... guess what happen?
It was working,
but they were not using PPPoE, but using
TCP/IP
Configure IPv4 : Using DHCP
PPPoE
empty .. not activated
Ethernet
automatically
Proxies
manually
Now I wonder , was it really a defect mainboard, or was it a software problem
...btw: my password for the provider only has 6 digits ... everytime when I was using PPPoE typing in the password, the imac was completing the password by two additional digits ( "dots") .. perhaps that was/is the problem.
Now, as I'm connecting via DHCP the setting in the modem are used ... with the correct password ... anyhow .. it is working now ... but it makes me still wonder why I cannot use PPPoE.
Any comments appreciated.
Regards,
Oliver from Malaysia

Probably yes...
{I say that because I don't remember what mine say
on the cables. They just work, and when they fail,
I get another cable; sometimes the end connectors
get loose or more rare, a wire inside could break...
So, I have spares on hand; probably the right ones.}
• Ethernet: Speed of Ethernet Cabling
http://support.apple.com/kb/TA20669
• Ethernet: Cables Used by Macintosh Computers
http://support.apple.com/kb/TA20668
• Creating a small Ethernet network:
http://support.apple.com/kb/HT1433
Good luck & happy computing!

Connected to internet via ethernet but server not responding

I have browsed some threads on this topic but none gave me an answer, and my set up is not quite the same as those that I've read. I don't want to hijack another thread and confuse the readers. I would be very grateful for help on this issue.
I have connected a G3 imac to a G5 imac with ethernet cable and both are configured for file sharing following the instrauctions on this help site. Both machines communicate and file sharing is okay.
Now I want to share the dial-up internet connection of the G3 with G5 over this ethernet connection. I have configured both machines following instructions on this site. At the moment file and web sharing is enabled on both machines.
In sharing preferences/internet internet sharing is turned on on the host (the one connected to the internet)
In sharing/firewall personal web-sharing is checked on both machines
In built-in-ethernet/TCP/IP config IPv4 is off on both, although i have tried it with IPv4 set to using DHCP on the host, and then on both
No proxies are set
I have tried it with Appletalk both on and off on both machines
In network status internal modem is at the top of the list on the host and ethernet is at the top on the guest and both say that they are connected to the internet. The ethernet appears as connected to the internet with green light even when the host computer is not connected to the internet.
Yesterday I was able to browse using IE in windows XP running on virtual PC on the guest (G5) but this is the only time it's worked and I don't know what i did for that to happen. I only wanted to run a software activation on the G5 but the message unable to establish a connection appears.
I followed the help in virtual PC to share the Macs internet connection with windows, but havn't been able to connect to internet using the browsers on the OS X system. Tried altering browser preferences as well with no joy.
Everything works fine on the G3
I don't know where to go next.
imac G5 Mac OS X (10.4.3)

Teecee,
You may want to re-post this is the "Internet, Networking and your iMac G5" Forums to get more relevant and better informed answers as pertaining to your issue and your particular model.
Here is the link to that area of the discussions:
http://discussions.apple.com/forum.jspa?forumID=880
This forum is for "Using your iMac (early 2006)" models (or Intel CD) and this venue may not quite provide the insight and background you need for your specific model and problem.
Hope you get the help you need there...

Difficulty connecting to internet via ethernet

Cannot connect to internet. Cable from router (which is okay, as I have an iMac hooked up to it and it works as does my Apple TV2) connects to iBook. Clieck on sys prefs.network: have green light next built in ethernet. Screen says: Connected: Built-in ethernet has a self assigned IP address and may not be able to connect. Click on Assist me> diagnostics: get green for ethernet, yellow for network settings, and red for all the rest.
(Tried another ethernet cable at a whole different location and same thing, would not connect.)
Have reset/reboot router and computer, no change.
Have tried an unused IP address from the router. Says I am connected, but when I try software update or Firefox, am not connected.
Recently upgrade from 10.4 to 10.5, used to work ok in 10.4
Thanks
Rick

Hi Another user did not help. Had a backed up 10.5.8 from my iMac on an external drive (that was bootable). Booted iBook off of it and now iBook connects with internet okay.
So I earase iBook and copied basic parts from external drive to iBook with car copy cloner. (Would have used 10.5 install disk but misplaced). iBook boots okay, but has a lot of stuff on it I don't need on the iBook
Thanks
Rick

HT3728 every time my iMac sleeps or restarts it loses the connection to airport express and i must reset and connect with router via ethernet cable.

Every time my imac sleeps or restarts it loses the wireless connection with my airport express (used for streaming music). I then have to disconnect the airport express from my stereo, bring it to my router, connect it to my router with ethernet cable and reset the wireless connection. Even with my airport express in the same room as my router Airport Utility cannot find it until i plug in an ethernet cable, so i do not think this is an issue with my wireless network. Router is a newer netgear.

Hi there frustrated newbie 2014,
You may find the troubleshooting steps in the article below helpful.
Wi-Fi: How to troubleshoot Wi-Fi connectivity
http://support.apple.com/kb/HT4628
-Griff W.

Internet via ethernet cable not recognised: just wireless

Hi -
I have an ethernet cable that supplies my internet, but Windows Vista (Home Premium) will only let me access a Wireless connection (of which I don't have one!).
Can anybody help?
Thanks!

anch66,
Could you please provide a little more information. Who is your Internet Service Provider (ISP) and what are their minimum system requirements?
Our G3 that connected to the web for years with OS 8.1 no longer connects because we changed providers. Juno requires OS X to load pages. We can connect to the server with the right settings but then it does nothing to load a page because the minimum OS requirements are not met.
Gmail is similar. It requires OS X to set up an account. I had my son set up the account on his G5 and then we could access it with OS 8.1 on the G3. The devil is in the details.
Do you have a second hard drive or a partition on your drive to give you a backup if the upgrade does not go well. Buying an install CD would give you a little better upgrade path.
Ji˜m

AEX not recognizing internet via ethernet cable

This is an odd one.
I'm housesitting and my friends have a dsl box with ethernet out to connect to the net. If I plug the ethernet cable into my computer I'm online, period.
If I plug my AEX into the ethernet cable, I can't access the net. I can connect to the AEX fine, but it doesn't recognize that there's an internet connection.
When I plug my AEX into the ethernet cable at work, it connects to the net immediately.
Any idea what to do to resolve this?
Thanks,
Tom

A couple of reasons may be causing this:
1. Since you switched out the device (computer vs AX) connected to the DSL modem, you might have not provided enough time for a complete power recycle...so that the modem can "recognize" the AX.
Modem/Router Power Recycling - Quick
o Power-off the DSL/Cable modem, Internet router, & computer(s); Wait at least 5 minutes.
o Power-on the DSL/Cable modem; Wait at least 5 minutes.
o Power-on the Internet router; Wait at least 5 minutes.
o Power-on the computer(s)
If this fails to get the modem to "recognize" the Internet router, then try the "Full" version.
Modem/Router Power ReCycling - Full
o Power-off the DSL/Cable modem, Internet router, & computer(s). (Wait at least 30 minutes. If possible, leave the modem off overnight.)
o Power-on the DSL/Cable modem; Wait at least 30 minutes.
o Power-on the Internet router; Wait at least 5 minutes.
o Power-on the computer(s)
2. The ISP requirements for Internet connectivity may be totally different (PPPoE vs DHCP) between your friend's network and the one you use at work.

HT4889 I can connect both computers via ethernet cable?

I recently bought a new retina display MacBook Pro and have files and applications I want to transfer over from my big clunky Mac to my new laptop for college (audio engineering).
I want to save some money and not buy a firewire or wait like 5 hours to transfer everything via my wi-fi network so is it possible to use the ethernet cable to transfer everything?

Yes. The Mac's Ethernet ports are autopolarizing and will self-assign an IP address from the 169.x.x.x reserved pool. However, I fail to see how you are going to plug in an Ethernet cable to a Retina Mac without an adapter.

IMac Won't Auto Connect To Internet Via Ethernet Cable

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