MacPro Ethernet shows no connection

MacPro won't show a connection to Ethernet. I can plug my MacBook into the Ethernet cable and it will work fine, so I thought it might be the Ethernet plug on the MacPro. I took the MacPro to the Apple Store, they plugged it in and it worked fine (both Ethernet plugs). Got home plugged it and still won't show that anything is plugged in.
Here are some of the things I have tried to fix it:
Restarted many time.
Started up from another drive.
Changed Ethernet cables.
Repaired permissions.
Connected straight to cable modem instead of going through airport extreme.
Unplugged cable modem and airport extreme to let reset.
I don't have airport card in my macpro so I really need to fix it, it's my main computer that iPhone, iPad and apple runs from and backups.

Well left the computer off all night and when I started up the ethernet showed up. Not sure what the problem was but it's working for now.

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Hi there can anyone help. I am connected to the internet by ethernet but my connection keeps timing out and my network diagnostics shows all green and network connection ok but still no internet connection. the other wireless laptop in my flat works well.

Hi there can anyone help. I am connected to the Internet by Ethernet but my connection keeps timing out and my network diagnostics shows all green and network connection ok but still no Internet connection. the other wireless laptop in my flat works well. Could the other wireless laptops being used in my flat be affecting my connection. what can I do to get connected, keep connected. Thanks for any ideas out there.

My network connected for a few hours then went back to timing out. I have not changed anything. However there four additional laptop users in my family who do not seem to be having any problems using their wireless connection. Could their film and music downloads be causing the timing out of my connection and if so is there a way I could prioritizes my computer or limit their use?

I have a mac os x snow leopard. my problem is that when i go to the ethernet settings it shows 'not connected'. i called the internet person even he couldn't fix it PLEASE HELP!!!!!!!!!!!!!!

i have a mac os x snow leopard. my problem is that when i go to the ethernet settings it shows 'not connected'. i called the internet person even he couldn't fix it PLEASE HELP!!!!!!!!!!!!!!

System Preferences > Network > Ethernet? If that shows "not connected" that is all your Mac knows. As far as it is concerned there is no cable connected to the port on your Mac, or the other end of the cable is either disconnected or connected to something that is broken.
Try another cable. If the cable is broken you will also get that status message. If you have exhausted all of these possibilities, the only remaining cause is an inoperative port on your Mac.

Showing as connected to the internet but can't get...

Hi,
This is my first post so apologies in advance if I'm using this incorrectly!
I have BT Infinity and have had very few problems since getting it but for the last few days I have been unable to get online. I've called BT a few times and it is showing that I'm connected to the internet so they felt it may be an issue with the Home Hub so are sending me another. In the meantime I have bought another router and connected this to the modem etc and it is showing as being connected to the internet but I still am unable to get online. This is both when connected via an Ethernet cable or wirelessly and is the same across all devices (pc, ipad, iPhone etc). As I say, it is showing as connected to the internet but I can't get online at all. I can via BT Openzone so I know my various devices are working.
I am almost certain the new Home Hub will not help. It's driving me mad. Any suggestions?
Thanks in advance.

If as you say,you have tried the HH and other routers,and have reset and rewired the connections to the OR modem with no joy,then it leaves only 2 possible causes.
1)The RJ11 cable from the OR modem to the master socket might be faulty.
2)But it is most likely to be a fault in the line from the master to the cabinet,or a very noisy line.
You might need an engineer visit to check at the cab or the line.
Your local network seems to be in order,as it is indicating a network connection,but if the line is faulty to the cab,then you would not be able to get a stable connection,or no internet.

Thunderbolt Ethernet adapter not connecting on MacBook Pro Retina

I recently purchased the Thunderbolt to Ethernet Adapter to connect to my 13in MacBook Pro Retina Late 2012 (Mountain Lion 10.8.2) to a hardwired internet connection for faster downloads. However, when I connect the ethernet cord to the adapter nothing happens and only the wifi connection is identified.
Ethernet or Thunderbolt Ethernet are not an option in the System Preference > Network. Also, either connection are options when trying to add a network interface ( System Preferences > Network > + > Interface).
I have tried several fixes like Resetting PRAM or Removing Network Preferences File. The NetworkInferences.plist and Preferences.plist files did get recreated after reboot, but only the WIFI interface shows up.
http://tearfulwolfstudios.wordpress.com/2012/03/13/reset-network-preferences-osx /
http://rohanradio.com/blog/2012/02/27/fixing-thunderbolt-ethernet-on-the-macbook -pro/
I am sure the Thunderbolt ports are functional since I am able to connect my display using Mini DisplayPort to DVI Adapter
Could I have corrupted the Network Preference File or is could the Thunderbolt to Ethernet Adapter damaged?
Please help.

I had this problem, too, and an Apple Support call and Genius Bar visit later, I had the answer: if you're using Network Locations that preexist your Thunderbolt display, it doesn't seem to auto-add the possibility of "Display Ethernet" to your available network ports. To solve this, either:
Create a new Location in your Network system preferences. It will finally detect the "Display Ethernet" and use it. It'll slowly change from disconnected to No IP to green-is-for-go.
or
Fix an existing Location by clicking the + to add a port and choosing Display Ethernet. It'll slowly change from disconnected to No IP to green-is-for-go.

What is (en1) adapter and why am I not showing airport connection?

Ok, so I'm in the network preference pane looking at three possibilities.
1) Ethernet adapter (en1) which shows an IP and tells me I'm connected to the internet.
2) Airport which is connected to my home network but does not have an IP and "cannot connect to the Internet"
3) VPN (L2TP) which is configured but not connected.
So, back to my original question. As I am obviously connected to the Linksys wireless router through the airport card, what is this en1 and why does it tell me I'm connected through it instead of the airport?
Message was edited by: Trent Mckenica
Message was edited by: Trent Mckenica

I was (am) definitely connected. Just was a little confused as to why the Airport pane didn't show connectivity. I ended up going to sysprefs, choosing "Show: Network Port Configurations", and dragging the Airport to the top of the list. (It did show BOTH Airport and en0 network adapter as choices). After dragging Airport to the top of the list, the Airport TCP/IP pane showed the connectivity I expected to see in the first place. Really not an issue as I was always connected anyways, just not what I was used to seeing.

Dual Ethernet will not connect if set to share Single IP address

The subject says it all. My trusty old Dual Ethernet will not connect if set to share Single IP address.
I cannot get anything but a self assigned IP address with it set to share a single IP address.
Before about Tuesday of last week I had connected to it a Mac mini, iMac, Dell Desktop, Dell Laptop, and PS3 all working fine. I think Comcast or Apple updated their system or Airport software and now the old dual Ethernet will not share a single IP address.

So far as I know, there has been no recent change in Apple's software affecting the Snow (a/k/a Dual Ethernet) base station. About 2-1/2 weeks ago, Apple distributed an update to AirPort software for Intel Macs running Tiger, but it would not have affected the base station.
Your topic implies that when the Snow is not set to share a single IP address (i.e., presumably, when "Distribute IP addresses" is unchecked in the Network pane of AirPort Admin Utility for Graphite and Snow), one of the computers is connecting to the Internet through the base station. I also imagine that the self assigned IP address you mention is the IP address of that computer, rather than of the base station, and that that computer obtains an IP address from Comcast when the Snow is not distributing IP addresses.
Assuming that that computer is connecting wirelessly, then whatever settings that computer is using for TCP/IP and PPPoE in the AirPort part of System Preferences, while the computer connects to the Internet, should be the ones used for the base station, in the Internet pane of AirPort Admin Utility for Graphite and Snow. (Most likely, it is simply "Using DHCP.") The IP address obtained from Comcast should be received by the base station, when it is set to distribute IP addresses in the Network pane, and the IP address should show up in the Internet pane. (When the Snow is distributing IP addresses, it has two IP addresses itself, a WAN IP address obtained from Comcast and a LAN IP address, 10.0.1.1, visible only to devices in your network.)
Even when the settings are correct, the Snow might not be able to obtain an IP address if your cable modem remembers the computer, which had been receiving the IP address previously. You'll probably need to shut down the computers and unplug power to the base station and cable modem. After waiting 5 minutes, restore power to the modem, then after another 5 minutes, restore power to the base station, then after another 5 minutes, start up a computer.

I just downloaded the new version of Firefox and now every site I used to use such as Facebook, Twitter, and Youtube show "This Connection Is Untrusted"

I just downloaded the new version of Firefox and now every site I used to use such as Facebook, Twitter, and Youtube show "This Connection Is Untrusted". Even when I do accept the risks the site no longer looks the way it's looked for years. Twitter doesn't even give me the option to accept the risks at all and shows this error (Error code: sec_error_unknown_issuer). I've tried resetting Firefox, I've checked the time and date, and I've removed and added Firefox to see if that would work. Nothing seems to be working so I can see the sites the way they normally would be instead of "coded". Can anybody help me please?!!! Thanks

ok, unfortunately the fiddler2.com issuer in certificates might be a sign of unwanted software present on your pc that is intercepting secure network traffic. please go into the system control panel and uninstall programs like BrowserSafeguard, BrowserSafe, SafeGuard or other software that sounds suspicious and didn't get installed by you intentionally.
<sub>reference: https://support.mozilla.org/en-US/questions/982532#answer-520145</sub>
afterwards, run a full scan of your system with different security tools like the [http://www.malwarebytes.org/products/malwarebytes_free free version of malwarebytes] & [http://www.bleepingcomputer.com/download/adwcleaner/ adwcleaner].
[[Troubleshoot Firefox issues caused by malware]]

Able to access internet yet error message shows not connected?

Lenovo W520 4270CTO
Windows 7 Professional SP1 64 bit.
Each time I connect my laptop to a location other than my (first and original) home office, the network icon in the taskbar shows a yellow triangle with an exclamation mark through it, meaning "Unidentified network, no access". Yet, I have both wifi and LAN connection as evidenced by me being able to post on this forum.
I have tried to change my location to "home" or "work" to no effect. One of the error messages I get is 'must belong to a home network' in order to change. Well, from what I can understand, a home network is created by and for other Win 7 machines. I am the only one at this location...and I own the network (my new home office location). In another instance where this happened, I had a network engineer at that office location look at the problem and that's where I learned that although the icon shows no connection, it was in fact connected to their wifi.
It is impacting me because I subscribe to MS Office 365. I have had Microsoft support trying to troubleshoot the problem, inadvertently as I was having trouble connecting my Outlook client to get mail. Since that time, my Office 365 subscription needs activation, but it can't hit the MS license server. Also my Skydrive is not synching. It's definitely been determined (by MS) that it's a local network issue. I don't think it is a network because it happens at other locations.
I need to get this fixed because my MS office license has expired and it needs re-activation. I have loaded the latest Lenovo wifi driver, thinking that would help (Intel PrOSet/Wireless Software version 16.1.3). Not sure what else to do here. I am going grayer by the day.

well, first check whether you're connected to the blackberry network...
how can I check whether myself connected to blackberry?
Check within the network bars on the phone whether it is showing you 3G, EDGE or GPRS in capital letters...!!
If not give a hard-reset to the phone (remove the battery put it back once)...
And if it shows in caps letters then try requesting for services again... how? on the phone desktop > within the search bar > type "Host Routing Table".... search results shows you as "options"... select that & select host routing table... afterwards, hit the blackberry menu button > select register...
.RoCkInG dUdE.
Trust Your Technolust | Do not PM for any support
If a solution received, please hit on to show your support.

TS3694 I performed an iOS 7 software update on my iPhone yesterday, and now the phone is not working at all. The iPhone screen shows to connect to iTunes to restore. I've have done this, and still the iPhone is not working. What going on?

I performed an iOS 7 software update on my iPhone yesterday, and now the phone is not working at all. The iPhone screen shows to connect to iTunes to restore. I've have done this, and still the iPhone is not working. What going on?

I have no idea what may have caused your MacBook to stop working, but from your description it kind of sounds like it may have started before you ran Software Update and installed the new Apps. Just the general slow feeling and bugginess is what tips me off. You said that you weren't sure if you had closed all open windows, that doesn't matter if the computer restarts itself. It automatically closes all other open applications when restarting.
As to your data being retrievable, if when you take it in they do a fresh install of the OS, then no, it will not be unless you want to pay several thousand dollars to a software retrieval company.
I am glad to hear that you have taken into the Apple Store to get it fixed, and that you have all of your purchased music backed up to your iPod. You should be able to just transfer it all back to iTunes once you get your computer back should it be necessary.
As a side note, the proper place for this topic would probably in the MacBook forums, not iTunes since there is no evidence that iTunes started the issue.

My Ipod touch 5th gen is connected to wifi but internet doesnt work on it. It is showing full connectivity but when i try using itunes or safari, nothing loads.

My Ipod touch 5th gen is connected to wifi but internet doesnt work on it. It is showing full connectivity but when i try using itunes or safari, nothing loads.

Does the iOS device connect to other networks? If yes that tend to indicate a problem with your network.
Does the iOS device see the network?
Any error messages?
Do other devices now connect?
Did the iOS device connect before?
Try the following to rule out a software problem:
- Reset the iOS device. Nothing will be lost
Reset iOS device: Hold down the On/Off button and the Home button at the same time for at
least ten seconds, until the Apple logo appears.
- Power off and then back on your router
.- Reset network settings: Settings>General>Reset>Reset Network Settings
- iOS: Troubleshooting Wi-Fi networks and connections
- Wi-Fi: Unable to connect to an 802.11n Wi-Fi network
- iOS: Recommended settings for Wi-Fi routers and access points
- Restore from backup. See:
iOS: How to back up
- Restore to factory settings/new iOS device.
If still problem and it does not connect to any networks make an appointment at the Genius Bar of an Apple store since it appears you have a hardware problem.
Apple Retail Store - Genius Bar

UCCX 10.5 Real Time Report shows "Not Connected"

Hi,
UCCX 10.5 HA over LAN.
As per the title, RTR shows Not connected for both nodes and no data shown for all reports. all services are In service in both nodes.
Any Ideas?
Regards.

Hi Mohamed,
Are you accessing this via the IE or FF? If so which version?
The Real time reporting on UCCX connects to the RMI port 6999 to pull the information on the Engine. If there are no port blockages or if there are no issues with the browsers, then it is a problem with the configuration files in root holding this information which needs in depth analysis.
A restart of the Engine also should help. I know that everything is IN SERVICE, but I have noticed a lot of issues on UCCX 10.5 when there are stuck calls on the system, it impacts RTR with the midnight stats reset.
The reset of the Engine is bound to clear all the stuck calls in the system and this may be a side effect of the stuck calls on the system especially if the RTR was working before you noticed the problems.
Regards,
Arundeep

I can not restore my Iphone 3gs i can turn it off an on but itunes cant connect because i have a lock on it but at the same time it shows the connect to itunes screen

I cant restore my iphone becasue its locked an it keeps showing the Connect to itunes screeen

Hello louii23,
Try reconnecting it in Recovery Mode as described in this article.
http://support.apple.com/kb/ht1808
B-rock

My Ipod touch is showing a connect to itunes image. How do I fix it without loosing all of my footage and photos?

I updated my ipod but it failed....
Now my Ipod touch is showing a connect to itunes image. When I connected it to itunes it said that I need to "Restore it". But I have video on it that I really, really need. How do I do this without loosing all of my footage and photos?
Please help!?

You do not. You have to restore the iPod. You can then restoe from backup and get to where you were when the the last backups was made.

Ethernet port not connected - airport working - not able to get online

Hi, new poster. Never had an issue with our beloved iMac 20 inch Intel Core 2 Duo 2.16 GHz - 2GB 667 MHz DDR2 SDRAM. It's old but it serves us, we hope it's not shot. Power goes out a lot here, system has surge protection but no battery backup. System just goes down without being shutdown properly. We used wired Ethernet. No the problem. Last time power just went out, the system would not boot up. I searched around and found out to use the DVD to verify/repair disk. It finally did and system now boots up. However, it says the Ethernet is not connected. It is. I tried three different cables that worked with our laptop and two different routers, all that happens is the light on the router flashed on and off. While on the network status in sys pref displays no cable detected vs. Cable connected but not connected to internet. Assumed the port was shot. OK, turned on the airport. Connects, gets DHCP assigned IP address and/or accepts static IP but when we launch Safari says it can't connect. Tried Opera browser, same thing. Sophos AV also can't connect for updates. All these network configurations had worked previously until this last power outage. Searched for help, as I don't want to waste peoples time. Found out about these things that follow: SMC RESET - PRAM RESET - Delete connection and recreate same - Network Diagnostics - Hardware Diagnostics - Verify & Repair disk ••• Nothing makes it connect to Internet. Network diagnostics gets to end but will not get connected. Hardware diagnostics regular and extended report no issues. We think the logic board is shot given everything we tried and symptoms with system. Can anyone suggest something we did not try of the things we did listed above? Please help us save this thing from the recycling center. Thanks in advance. Sorry for the long post, wanted to be thorough with what's going on and what we have already tried and done thanks to searching these forums for the last week.

Yikes, sounds like big problems!
Have you blown the dust out lately?

MacPro Ethernet shows no connection

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