Imac can't connect to internet but ethernet working

Any ideas on how to resolve this, has me baffled. In an office where all other computers can connect but for some reason this imac can't.

Is the indicator next to Ethernet in the left Network panel breen or red? Green should indicate it is enabled.
Did you se your IPv4 setting appropriately (probalby DHCP).
Try using alternate DNS servers such as OpenDNS (208.67.222.222, 208.67.220.220) or google's DNS's (8.8.8.8, 8.8.4.4). Click the Advanced button, TCP/IP, and renew your lease if you are using DHCP. Configure IPv6 as Automatically (or off?). Also make sure all proxies are off.
For comparison look at the Network settings for one of the machines that is working.
Finally, is this machine connected to a router that may have its own problems?

Similar Messages

Can't connect to internet - but all settings seem correct!

My G5 can't connect to the internet (but my Mac Pro can). I've just had an engineer out because I thought it was the cable connection (I connect via a cable modem). Yet I can ping a host via the Network Utility when I boot from the Tiger DVD - so there doesn't seem to be a hardware problem. But from my user account I can't access the internet.
All the Network settings look fine - no firewall, nothing looks out of place. I'm getting an IP address served by the modem, and Diagnostics even says it can connect to the ISP server just no dialog with the internet!!! It's bizzare. Tried ping from Terminal too, no go. I've repaired permissions, still no go. Only thing I haven't done is zap the PRAM.
This is a direct connection to the modem via ethernet (I usually use a router but it's out of the equation now)
There's something blocking the connection but I can't find out what.
This happened after I swapped the network round so that my new Mac Pro would be the main internet machine (sharing the connection with other machines on my network). Previously I could connect to the G5 via the Mac Pro but that's no longer working, or rather it's REALLLLLY slow, it will eventually connect.
The only thing I've done out of the ordinary is put the drive from the G5 inside the Mac Pro to transfer some of my files. I had used BatChmod to change permissions on some User folders so I could copy them, but I've repaired the premissions since.
please HELP!!!!!!

I solved my problem by installing a fresh system on a different drive and starting from that. My Mac can now connect - but starting up into the other system causes the same no-internet problem so I can only assume it is some OS corruption that caused it.
Hope that helps someone.

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.

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?

Says can't connect to internet but actually is connected

I kept getting an error message "Cannot connect to internet" So after going round and round for almost an hour - reseting, reconfiguring network, trying ethernet cable instead of wifi etc. I chose "continue without internet" and bingo it's working now. so I must have a magic ATV that works without internet
And by the way during all these shenanigans two other computers on the same network were connecting to the router and internet fine.

Hi vazandrew, thanks for trying to help but actually the ATV is connected to the internet as I am able to continue watching the show I was watching when it fell. And just to confirm that it is not streaming from any local device, I went and selected a brand new show that I have never watched and it streamed fine.
So there is something strange going on with my ATV.
I am listing below the exact sequence of events for you to analyse:
Watching a show and in the middle of it, it dropped out and some kind of error message came up saying something like "Sorry your show can not continue due to no internet connection" (don't remember what exactly).
Went over to my macbook and it was still connected fine - opened several new browser pages, refreshed them, etc.- all fine
Went back to ATV and went to settings > menu > general > network etc. and re-configured but kept getting message something like "you are connected to wi-fi/router GVT-blah blah" (ours) but you have no internet connection.
Went back and reconfigured network several times, logged in/out of user account several times but still no joy.
Went to settings > menu > general > reset all, reconfigured everything to factory default, logged back in, then got the dreaded endless spinning wheel with an eventual message saying something like "could not set date and time"
Went and changed to configure date /time manually but couldn't find the field to do so so went back and changed back to auto.
Also changed region from US to Brazil
Spent about an hour doing all of the above several times and also checked my macbook several times to confirm internet connection was all good, including a speed test.
Tried ethernet cable connected directly from router to ATV, it showed as connected to router on ATV but still kept giving me message of no internet.
Disconnected ethernet cable and switched back to w-fi and reset and reconfigured all again but same message saying something like "connected to router, but no internet - continue without internet?
Finally in desperation, I chose "Continue without internet"
The screen then went to the Netflix one month free sub option that we subscribed to when we first got the ATV, which I chose and went through the iTunestore account log-in.
Bingo..all working again supposedly with no internet.
Finally just to confirm 100% that the ATV is not streaming via another local device, I shut them all down and the ATV is still streamed fine.
And as I said above, I am able to continue streaming the interrupted show and also chose other Netflix shows that I have never watched before (for now).
If you ask me, very buggy!

Satellite C655D-S5533 can't connect to internet through ethernet (wireless connection ok)

I can't get an ethernet connection thru my ISP's (Comcast) internet cable box. I clicked the LAN icon on control panel but still can't connect.

First, reboot the Comcast box and then reboot the computer. If it still doesn't work, look in Device Manager under Network Adapters. If the LAN adapter shown there is Atheros, reinstall using THIS driver. If it says something else, post back. I'm assuming you are still using Windows 7 64 bit that came with the machine.
C.B.
Toshiba Sat. C75D-B7260 Win 8.1 64 Bit--Toshiba Sat. L775D-S7132 Win 7 HP SP1 64 Bit and Win 10 PRO Technical Preview--Toshiba Sat. L305-S5921 Win Vista SP2 32 Bit

My iMac can't connect to internet wirelessly

I purchased a 27" iMac in 2013 version 10.8.5. For no apparent reason, my iMac won't connect to the wireless. According to my iMac I have full bars but when i open my browser and try to connect to any website, the page won't open. The browser continues to try to load page for some time and eventually displays "Safari can't open the page "http://<website address>/" because the server where this page is located isn't responding." I had, prior to this problem, and still have, after this problem, other devices connected to the same wireless router without problems. My current wireless router doesn't have a password, however, there are no neighbors close enough to connect to my wireless router. I've restarted my computer, shutdown my computer, restarted my wireless router, turned on/off Wifi to no avail.
Per System Preferences>Network>Wifi, i have a green light with status: Connected. My Airport Utility however switches back and forth between connected and not connected. But regardless of what my Airport Utility says, I can't access wireless. I'm looking at the IP address and my macbook pro is connected to the same IP address without any problems. Does someone know what's going on?
Please help!

Hello, littlemold
Thank you for visiting Apple Support Communities.
I see you have already processed most of the relevant troubleshooting steps for this issue. This could be related to your router assigning a self-assigned IP address. I would recommend going through the steps in the article below.
Wi-Fi: How to troubleshoot Wi-Fi connectivity
http://support.apple.com/HT202222
Cheers,
Jason H.

Can't connect to internet by ethernet or airport

I have a valid connection to my cable modem ISP and can also see a valid connection to a wireless network through airport, but none of my applications can access the internet: Safari, Firefox, etc. I had just installed Firefox and actually had both browsers open and connected at the same time. I was downloading a dmg through Firefox and looking at a web page in Safari when the connection died for both. Did trying to use both browsers mess up some of my settings?
Any help is greatly appreciated.

Last night I actually spent an hour on the phone with an Apple support tech. We tried lots of different things, including both of these suggestions. Still can't connect, though he agreed that it must not be an ISP issue but a problem somewhere in the system. He also directed me to reinstall and archive. That didn't immediately solve it either, but i'm not sure the reinstall worked properly. I'll try that again tonight.
In case that doesn't help, any other ideas?

HT5361 Mail.app can't connect to Gmail, but was working fine yesterday

Suddenly this morning gmail can't connect to server. I tried changing the password, still nothing. I'm getting mail in Gmail if I log into Google and I'm
getting it on my phone, just not on my MackBook Air.

Hi there barbls,
You may find the troubleshooting steps in the article below helpful.
OS X Mail: Troubleshooting sending and receiving email messages
http://support.apple.com/kb/ts3276
-Griff W.

IMac won't connect to internet, but can on internal network

Hi,
I've tried resetting the router and various other things that I found on the internet. I know its not a router problem as I am using my MBP to post this discussion. It won't even connect to the router's internap page. Any thoughts?

With the iMac failing to open any web page outside of your network, then I would be checking the DNS setting in System Preferences > Network > Wifi > Advanced. Compare what you have here to what the MBP has set.
But with the iMac also failing to connect to the routers internal web page then you've got additional problems beyond DNS. Using the MBP as a reference, if you make a note of the TCP/IP network settings in the Advanced section as shown above, is the iMac using the same? (apart from the IP address which should have the last number set to a different value).

Can't connect to internet with Ethernet

I can no longer connect to the Internet through wi-fi or Ethernet.
All tests I run say I am connected to the Internet. This issued just started out of the blue when trying to connect wirelessly in my office only with the iMac, my macbook has no issues.
I contacted Comcast- they ran a bunch of tests and gave me a new modem- there was nothing wrong with the connection.
I brought it into Apple, they insisted it was my Internet connection. this went back and forth between Comcast and Apple a few times.
I contacted Comcast again, had an outlet installed so I wouldn't be wireless and could connect with an Ethernet cable thinking that maybe this was interference of some sort, it worked for a few weeks and then the other day it stopped. Again, I show that I am connected but nothing happens. I plugged in the macbook with the Ethernet and I am connecting fine.
The kicker is, I can physically move my iMac out of the office into another room and can connect perfectly through wi-fi. I am stumped
any suggestions?

Yes, if you are running 10.6.8 in an iMac purchased in 2008, it is not a PowerPC
I asked the Hosts to move it to the correct forum for you
Allan

Brand new IMac can't connect to Internet while using Vista Ultimate

The subject is pretty much it, but basically. We just bought a brand new IMac and I happened to have an old copy of Windows Vista Ultimate lying around and wanted to partition some hard drive space for gaming. During the installation a message popped up that said Lion only supports Windows 7. I went through with the installation and after Windows started I loaded in my old Snow Leopard CD. I installed the drivers and went through the set up. Everything seemed fine, but I am unable to connect to the Internet. I plugged my desktop in via Ethernet to my router but still no Internet. In my device manager there are many devices, including network controller, that have yellow exclamations next to them but I don't know how to update them or where to get the drivers. Any help would be greatly appreciated, and I would be happy to take any steps to relay more information. Thank you!

New motherboard. So unless you can find, and want to mess around, which is why the pdf guide and all the faqs tell you what and how to install, and that only 7 is supported.
Vista SP1 is no longer supported even by MS.
You have Sandy Bridge based system with Thunderbolt, hence it needed new device drivers.
Windows 7 64-bit SP1 Home Premium System Builder is $95

IMac can't connect to internet dial up after start up.

I've a problem every time I try to make a connection to the internet directly after starting up my iMac. The very first time I try to log on to my ISP the Mac appears to make a connection, the status window in Internet connect indicates that it has (generally 52-54000bps), but when I try to surf, my browser can't find any sites, same with email. I get the standard connection noise when dialing out, occasionally the noise drops out mid way through, but it always makes a connection. Sometimes it will disconnect after about 30-40 secs, sometimes it doesn't. When I reconnect a second time I get good speeds and can stay on for hours. This is happening every time I boot up and dial out, basically I now expect to have to dial out twice before I can get onto the web every time I switch on the computer.
I've read a few threads re this problem, it seems the iMac has a software modem which can cause some problems, but there doesn't seem to be too many complaints about this exact same issue. Should I be getting a Mac tech to sort this out or is this a generic issue that may be resolved in a future software update? This is a new Mac my second as the first nearly flew out the window after a kernel panic. Apple tech support in Sydney don't seem to have heard of this problem, and have told me to re install the OS again, which of course I have, plus run disk aid and re set the permissions etc etc...
The ISP has given me an alternative dial up number which actually works the first time I dial in, but I only get speeds of 28000bps. Can anyone shed any light on this? Will I get a similar problem if I went to Broadband?
Thanks for any comments...

Unfortunately I've not got any help on this issue. An Apple tech has told me to try changing the modem settings down to V34 which I did, the connection worked correctly but I was only getting speeds of up to 33000bps, real speed tests showed I was actually only on 28000bps, same as when I dialed the alternative number given by the ISP, not good enough. I don't have any other devices connected to the phone line, in fact the line is only used for the internet. Maybe there is a problem with this type of software modem, but then why isn't there more comments here, unless everyone else is on broadband. Apple and my ISP seem to think the slower connection is more reliable, it is but at a cost. Not sure why this is considered better when the speed is so slowww. Like Seb above I don't have any problems when I'm using a Windows lap top on the same line.
Anyone out there know the answer??? There are at least 3 of us with this problem...

Mac suddenly can't connect to internet (but sees rest of network ok)

for some very odd reason one of our macs now refuses to see the internet.
all the macs are hooked up to a gigabit switch and then to our dsl line via a sisco firewall. the problem mac can see every other mac on the network and connect successfully to them but it will not access the internet. the network settings have not changed.
any suggestions?

hi jeff
thanks for the swift response. we don't use proxy settings. i changed another mac to the problem macs ip address and it wouldn't connect until i changed it back. i'm thinking it must be the firewall blocking that ip address.

Can't Connect To Internet on Ethernet

Hey all,
I think this happened when I upgraded to Leopard, but never checked. I can connect to my home network over airport, but not ethernet. All settings are correct, went through the diagnostics, but can't figure it out. Anyone know what's up?

Also remember that CAT 5 cable is going/went through a change. Take a look at CAT 5e or 6 cable for future networking.

Imac can't connect to internet but ethernet working

Similar Messages

Maybe you are looking for