OS X :: Using Ethernet Port Connection

Jun 14, 2009

I used the MacRumors Buyer's Guide for several months to find the best time to buy a MacBook. I'd never had a Mac before and found it to be so valuable. I hope someone in the forum can be as helpful as the site has been.

Yesterday I bought a new MacBook Pro 13" and as a store option the RAM was doubled to 4GB. Everything has worked well so far, in both OS X and Windows XP through Boot Camp, except for either OS accessing the LAN cable on my home ADSL. Both my portable modem (EMobile network in Japan) and the wireless seem to work with no issue, and both OS will recognize the ethernet port. I'm concerned that perhaps the ethernet adapter was modified when the store installed the memory.

I can remove the ethernet cable from one computer (where it works without any settings changes on my Windows notebook) and plug the same cable into the MacBook and it will not be recognized. The Mac OS error is that no cable is inserted.

However, as it's my first Mac, I didn't know if perhaps some new settings are required to make things work smoothly. Is there any DNS settings etc. that must be set for it to connect? Also is there some kind of connection diagnostic that will specify the location of the error in the machine? I'd like to exhaust any option before shipping this back to the store to be repaired or replaced.

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Jul 27, 2008

i have my mac pro using one ethernet port for net connection can i put a sec cable in the other port connect it to my macbook pro and share the connection?

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May 20, 2009

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Aug 11, 2009

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Hardware :: Adapter Can Be Used With Both A Usb Port And An Ethernet Port

Mar 21, 2008

is there a adapter with both a usb port and an eternet port?

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Mac Pro :: Use 2nd Ethernet Port?

Feb 5, 2009

Is it possible to use the second ethernet port on the Mac Pro to output internet to another computer or router?

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May 9, 2008

Basically, I have a wireless router in my house that my Mac Pro connects to from a seperate room. I have an xbox 360 in my room with the Mac Pro. Without buying the $100 360 wireless adapter, could I configure it so I could run my 360 into my Mac Pro's ethernet port and piggy back off of my Mac's wireless connection to get on Xbox Live?

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OS X :: Ethernet Port - Lug Machine

Jan 3, 2010

First I have an early 2008 Mac Pro with 2 Ethernet ports. Port 1 works but port 2 doesn't. Do I have to lug this BIG machine into an store or do they come to the house and fix it. I have the 3 year Apple Care. The closest store to me is 75 miles away.

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Nov 11, 2010

I'm looking to add a second ethernet port to my MacBook Pro using this product designed for the MacBook Air: [URL:...] Comments on the Apple site indicate that the device can be used with other computers, but I want to make completely sure it's going to do what I want it to do before I make the purchase. The reason I'm looking to do this is that I want to link my MB (via ethernet) to another laptop running Windows 7 Ultimate and use the Microsoft Remote Desktop Client to operate programs installed on the WIndows machine. The catch is that the internet at my current location (a university accommodation building) is also supplied by ethernet LAN and has some kind of detection system that prevents unauthorised routers from accessing the internet. So basically what I want to do is have the university LAN/internet running into the existing ethernet port on my Mac and then connect the ethernet port on the windows machine to the USB/Ethernet adapter plugged into one of the Mac's USB ports. The Windows machine does not have to have internet access. Is this possible? Will I be able to configure the two ethernet ports separately to operate two network connections? I understand the connections would require a different subnet mask and possibly a static IP for the computer-computer connection. That was a bit long-winded in the end.

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Mac Pro :: Sharing Internet Over Second Ethernet Port?

Feb 12, 2007

Recently got a Mac pro. However my room only has one network socket going into my router, this goes to ethernet port 1. Internet works fine, no issues. However my old desktop (that the MP replaced) can't get online now - no second network port from the router into the room the computers are in. I have a crossover cable that I've used to connect the 2nd MP ethernet port to the PC ethernet port. However I can't get internet access on the PC. If the PC and port 2 are on their own subnet (not the router/port 1 subnet) I can get file sharing going between the MP & PC, but cannot figure out how to get the router/MP/PC on the same subnet together using both ethernet ports of the MP. I have already tried enabling internet sharing under system prefs etwork, but it doesnt work. Network: Router (connected to internet) at 192.168.1.1 - connected to mac MP port 1 - 192.168.1.2 - works fine in connecting to the net MP port 2 - 192.168.255.1 - works in networking to PC for filesharing PC - 192.168.255.2 - works in networking to Mac for filesharing Any combination of 192.168.1.xxx for the MP port 2 and PC, they can't fileshare anymore and there is still no internet for the PC. Anyone know how to do this?

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Nov 14, 2008

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Hardware :: Create Second Ethernet Port?

Apr 19, 2009

i have a macbook and an airport express, which is plugged into a cable modem. i plan to buy a samsung blu-ray player (model 1600), which can plug into an ethernet port or, for more money, use wireless. i'd like to use an ethernet cable because I think the airport express gets overloaded sometimes (music stops if two computers using wireless, for example) and the wireless attachment for the blu-ray player is a little pricey. how do i create a second ethernet port? do i plug a router into my cable modem and then plug the airport express into one of the router's ethernet ports? if i do that, will it just work or is there some set-up work to do?

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May 17, 2009

I've had the 13" aluminum macbook since October 2008 and I've never had a problem with the wireless or an Ethernet connection. I turned on my computer the other day and I couldn't connect to the internet through my ethernet port. I've determined it's not my connection (friend's macbook connects fine) and I've tried connecting to other ports around my campus and it still doesnt work. On network settings, the light is green, cable detected, assigned an ip address and dns but it simply times out when I try to connect to anything (firefox, itunes store, mail, etc.). I'm fairly new to mac os x.

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Mac Pro :: Ethernet Port 2 Doesn't Work

Sep 16, 2009

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Mac Pro :: Ethernet Port 1 Works On 1 Switch While Not On Another?

Oct 27, 2009

I have added a new switch to my network and it seems that ethernet port 1 does not work on this new switch. My network consist of dhcp server>switch 1>switch 2. Switch 1 is in my entertainment center and had ethernet port 1 connected to this switch since I have had my computer but when plugged into switch 2 which I have just added to my workstation and on the switch there is no lights and in system preferences port 1 flashes between not connected and no ip address. For port 2 it connects fine and both ports are set for dhcp. I have tried different cables setting a static address and can not find a reason why it won't work.

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OS X :: Connecting Router To Second Ethernet Port?

Dec 2, 2009

Can I connect a wireless router to the second ethernet port of my MacPro? I have the main ethernet cord from the modem connected to my ethernet port 1, then I connected my router to my computer through ethernet 2, thinking that it would broadcast the internet connection. However, it is not working. The router is broadcasting, but the internet isn't working (and the light indicating internet connection on the router is yellow, not green). Is this something that isn't possible? Or do I need to change settings (not just plug and go)?

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Jul 18, 2010

Is it possible to somehow use both ethernet ports on the mac together for faster internet browsing?

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Mac Pro :: Directing Traffic To Second Ethernet Port?

Mar 23, 2012

What is the process used to direct certain IP addresses or a range of IP addresses to the second ethernet connection on a Mac Pro? I have a set of Mac Pros that use the first connection for internet access and corporate server connections using Samba. But the second ethernet connection is used for a lan between the Mac Pros and printers. It currently works but it take a bit for the "connect to servers" dialog to connect to a Mac Pro on the lan because I think it is searching Connection 1 first which has hundreds of Windows servers attached to it. And it takes several minutes to connect if our service has an interruption on Connection 1. All of the Mac Pros and printers are set up to use a manual IP address (192.168...) The Mac Pro workstations use Snow Leopard and we have a Mac Pro Server running Lion Server that we use to conntrol a network RAID.

Info:
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Mar 26, 2012

My ethernet port is not working when cable is plugged in. Wireless works fine. Ethernet was working up until end of Feb. Then I turned it on and it wouldn't connect. Plugged into a friend's house still not working. Tried at work, still no luck. (I'm on a MacBook Pro late 2008)

Info:
MacBook Pro (15-inch Late 2008), Mac OS X (10.6.8)

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Intel Mac :: Not Recognizing Ethernet Port?

May 4, 2012

I have an iMac 27 inches, all was working fine, however, since this AM the ethernet port is not working thus I am unable to go online. I know a heavy thunderstorm happened last night. The machine is working perfect I can go on line ONLY via wifi. 

I did check cables with another computer, and modem is working fine. 

Info:
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Power Mac G5 :: Ethernet Port Connected To BT Home Hub?

Nov 29, 2007

I have a G5 DP 2.0 and have been using it's built in ethernet port connected straight to my BT home hub (adsl/router) for years. Any way I add into the mix a netgear 1000Base layer 2 switch and the G5's ethernet doesn't work, reconnect straight to the router and all is fine. Now tested with new cables and tested on every port on the switch. By the way the port light on the switch don't light up when G5 attached. Now have tried the switch with a g4 and all is fine on every port and supprisingly I've stuck a PCI card in the G5 and that works as well. Just can't work out why the built in won't work through the switch but will direct.

Information:
G5 + PB G4 + G4
Mac OS X (10.4.10)

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Sep 17, 2009

Is the etherent port that's on the powermac g4 a gigabit or whatever port? Or should I buy a new faster ethernet card for it?

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OS X :: Ethernet Port Loose - Cord Slips Out

Feb 3, 2010

My Ethernet cord won't stay put and I can't keep connected unless I hold the cord in, otherwise it just slips out. I've got Apple Care, but no idea whether or not they'll fix this. (I've tried multiple cords, so I don't think that's the problem.) If not, how much am I looking at to get this replaced? (Normally, I'd just buy a router, but I have a wireless router at home, in the United States. I'm currently located in Tokyo, and would rather not have to buy a router here, since I can't really read the manual.)

Either way, how long am I looking at this taking? Depending on the cost, I may or may not go for getting it fixed, but if I do, I would like to know how long I can expect to be without my laptop, though. (I would ask at the Genius Bar, but my Japanese is shaky and my computer skills aren't much better.) Also, as a side note, my MacBook's got those little splinters again, and I'd like to get them fixed up.

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Apr 16, 2010

I've been having an annoying problem lately. The ethernet port on my Mac Mini seems to have stopped working. It happened when I was switching routers. Most likely I just unplugged it from the old router, and into the new one. After that, no more connection, nothing changes when I plug something in.

As far as troubleshooting goes, I've plugged it into other ports, and into my MacBook Air (Just to get a Self assigned IP) and nothing works. I know these ports work with my other computers. I've reset the SMC and PRAM.It works in bootcamp so this makes me think it's not hardware. Any other suggestions?

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Aug 4, 2005

At the moment, I have an ADSL modem/router (1 port) connected to my switch (ethernet port 1 on the server and all my clients are also connected into this same switch). ADSL router has IP address 192.168.2.222 (assigned manually - outside my DHCP range). X Serve operates as DHCP for everything else and I put the default gateway as 192.168.2.222. Internet works fine on all computers (including server). But I want the ADSL modem/router to be connected to ethernet port 2 on X-Serve (not straight into the switch). If I just unplug the ADSL router from the switch and plug it into port 2 of the X-Serve, the server can access the internet, but all clients can no longer. Anyone have *any* clue how to fix this?! It doesn't seem that complicated, I feel I have done everything right.

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MacBook Pro :: Ethernet Port Doesn't Work

Jun 26, 2012

Brand new 2012 MBP 15":

Network system prefs recognizes that the Ethernet cable is plugged in but flips between unknown state an cable unplugged. Never gets a DHCP address. When the cable is unplugged, it stays on the unplugged status.  

As a note, I am having trouble getting Parallels to recognize any network connection at all, butmy immediate concern is the ethernet port. 

Info:
MacBook Pro, Mac OS X (10.7.4)

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MacBook Pro :: 15" Display Has No Ethernet Port

Dec 5, 2014

Macbook Pro with 15" display has no ethernet port.  Is there a way to make a wired connection using an ethernet adapter (external?) w/thunderbolt or usb cable?

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MacBook Pro (Retina, 15-inch, Mid 2014), OS X Yosemite (10.10.1)

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PowerPC :: One Ethernet Port / Internet Sharing Not Working

Mar 23, 2008

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OS X V10.7 Lion :: Lightning Strike Knocked Out Ethernet Port?

May 28, 2012

I have a known good CAT5 cable that does not work on the iMac. My Wi-Fi connection is still intact however.I have isolated that it is not any of my LAN or WLAN gear.I've tried multiple router ports and different cables, yet it appears my Ethernet port is fried. Can this be repaired?

Info:
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MacBook Pro :: Ethernet Port Broken - Safari / Chrome Not Working?

Sep 4, 2010

I just got to college and discovered that wifi didnt work (now I've learned that it only works with Firefox for whatever reason) so I just plugged into the ethernet port at my desk and it worked for a week or so and then it wouldn't work and I checked Network settings and it couldn't detect an ethernet cable. So I reset the PRAM and it worked... for a few hours, and now it doesn't. I don't want to have to do that every time I come back to my desk. What should I do about this? (and any suggestions on safari/chrome not working? I posted it in another subforum on here but I got nowhere)

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