No internet connection while actively connected to LAN via ethernet

I am having trouble connecting to the internet while working in my office at school via the Universities LAN. Everything worked fine last friday when I left for the weekend and then monday morning it would not connect. Over the weekend I updated the firmware with the MacBook EFI Firmware Update 1.2. Im not sure if this update may have reconfigured my network settings. I have an older PowerBook that still connects fine to the universities network. The strange thing is that when I plug in the ethernet cable and go into network diagnostics it shows that I am connected to the network via ethernet. If I run through the diagnostics for ethernet connections the network status is fine for the ethernet, network setting, and isp, but the internet and server fail citing no connection. I cannot connect to the internet via firefox or safari, but I can use Yahoo Instant messenger fine. If I can use the messenger why can't I connect to the internet? When I first connect my computer to the ethernet cable after a restart the internet works for maybe a minute then says cannot find network. I have done some searching around and think this may be an IP address issue, but have no clue how to remedy the situation. I have contacted our IT people and being a PC university no one can help me with a mac.
Thank you for any insight into this issue!

If you have Yahoo, then you can access the internet. Is it possible that the Yahoo IM client uses a hardcoded IP address to contact the Yahoo IM servers?
If you run Applications -> Utilities -> Network Utility -> Lookup
can you lookup any network names and get their IP address?
I'm wondering if you have valid DNS servers.

Similar Messages

  • Disable Internet Connection on LAN computers on Linksys E2500

    Hi,
    I am new here, and going to setting up my router in my small office.
    I have a Linksys E2500, and going to disable internet connection on computers that connected via LAN cable.
    So, this is how I am going to set my office.
                                                                          Internet
                                                                                 |
                                                                          modem
                                                                                 |
                                                                   Linksys E2500
                                                                    (192.168.1.1)
                              |                                                                                                   |
                       Hub A                                                                                            Hub B
         PC 1                     PC 2                                                                PC 3                        PC 4
    Hub A and Hub B are in different floor.
    Do these Hub A and Hub B still give the same range of IP Address from linksys (192.168.1.x) to the PCs below them, like PC 1 got 192.168.1.2, PC 2 got 192.168.1.3 and go on? Can I reserve an static IP Address to each PCs, and disable internet only on PCs below Hub B (PC 3 and PC 4)? I cannot find any controls for disabling internet connection on LAN interface from the E2500 Setup Interface. There are only Wireless MAC Filtering and no LAN MAC Filtering.
    If this thing sounds stupid, I am sorry but I have no experience in setting network here. I hope someone can help me out.
    Thanks a lot.

    I agree with FurryNutz. You will need an IP-enabled device for the router block it via Parental Controls. If you have wireless bridge or a manageable switch, you can block that and all the devices connected to it should also be blocked from internet access.
    I think you can set Static DNS on the computers under Hub B to 0.0.0.0 which will not allow them to access the internet but are still within the router's local network.

  • Connect time capsule via ethernet to Mac for back-up only. Is it possible without internet connection ?

    Connect time capsule via ethernet to Mac for back-up only. Is it possible without internet connection ?

    Hi Bob,
    I'm not certain the post I sent was posted correctly, as I added it as a reply to a 3-year old thread. Since this is a recently-active thread, though not specific to the issue at hand, I thought I'd post again:
    Three years ago you helped me set up a roaming wireless network in my home. It's been rock-steady and I'm forever grateful to you for the time and guidance you gave me. I'd now like to swap out my AirPort Extreme base station for a time capsule. As I understand it, I should be able to unplug the base station and replace it with the TC without problem, so long as I use all the same settings on my TC... network name, security protocol, password, etc. Given the complexity of my network, I thought I should check with you first for any advice you might have. I don't want to set up a new network or make any changes to the existing one-- with the exception of using the TC in place of the AE. I'm already using Time Machine for backups. As a refresher, my current setup has the AE as base station and 3 expresses hard-wired with Ethernet connections elsewhere in my home. I have a 4th express set up wirelessly to use with my stereo system at the front of the house. All AXs are 'n's and are set up, as per your instructions, in Bridge mode to extend the existing network. I'm running the most updated version of Mavericks on my MBPro. Any suggestions you might have will be, as always, very much appreciated! Sincerely, Phyllis Sommers

  • TS3276 On iMac with Mountain Lion I am now unable to send but can receive e-mails. Previously worked fine. I use an iCloud acct and Safari browser.  Internet connection is wireless via cable modem.  Any suggestion?  Thanks.

    On iMac with Mountain Lion I am now unable to send but can receive e-mails. Previously worked fine. I use an iCloud acct and Safari browser.  Internet connection is wireless via cable modem.  Any suggestion?  Thanks.

    Hi tarifiq and welcome to the BlackBerry Support Community Forums!
    Can you send me a private message with your PIN so I can check this out for you?
    Thanks
    -CptS
    Come follow your BlackBerry Technical Team on twitter! @BlackBerryHelp
    Be sure to click Kudos! for those who have helped you.Click Solution? for posts that have solved your issue(s)!

  • I need to backup TC's drive. How do I do this to WD MyBook Live connected to TC via Ethernet?

    I need to backup TC's drive. How do I do this to WD MyBook Live connected to TC via Ethernet?

    P.S. Solved it exactly the other way around (compared to the original intent). 4 simple steps:
    1. Made WD's MyBook Live my primary file server.
    2. Made WD's MyBook Live my backup location for Time Machine (moving to it made me reconfigure TM on all home Macs = new full backups and no old data left - but I didn't really need old backups - they were sitting there just in case).
    Added bonus - on MyBook Live it is easy to create shares (so that now my general file server is separate from my photo archive and software archive, etc.) - while on TC I had to partition the drive.
    3. Moved all files from TC to MyBook Live.
    4. Erased all data from TC - so that its drive is clean.
    5. Instructed MyBook Live to automatically backup itself to TC.
    Job done.

  • Directly Connect Two Macs Via Ethernet

    This has certainly been answered before, but a quick search didn't give any results. So here goes ...
    I wanted to connect two macs via ethernet. I use the mount tool in finder "connect to server" all the time with machines on a network, but I've never done with with two macs directly connected.
    So I connect them and my first instinct is to check the IP address of the machine I want to connect to. I then go to "connect to server" and type it in using the AFP protocol, but it doesn't work.
    At this point I'm stumped and not sure what to do. I don't use the "network" item in the finder sidebar very often but I clicked it, and sure enough the machine I want to connect to was listed, and I was able to connect / mount.
    So here's my question ... if I wanted to use "connect to server" tool, or even mount it manually with the mount command, how would I do it? Is it using AFP still to mount and the IP address is just bogus? Something else going on?

    But I'm telling you I tried using the IP address ... here, let me try again ...
    I find this address on the machine I want to connect to: 169.254.177.122
    I put this into "connect to server" on the machine I want to connect from: afp://169.254.177.122
    It spins for a while, then says it can't connect. Strangely, if I do a cmd-i on the machine in the network sidebar, it says: nfs:// automount ... into /Network
    So are you sure putting in the ip should work? If so what am I doing wrong?
    Okay ... plot thickens. When I cmd-i after I connect, it indeed says it is an AFP connect, but it gives the "local" name, say powerbook.local. But then, if I "ping powerbook.local" if gives me back the same IP I tried in connect to server. Huh?
    mbp:~ rjcarr$ ping powerbook.local
    PING powerbook.local (169.254.177.122): 56 data bytes
    Weird. It isn't that big of a deal ... I just like to know what is going on.

  • Time Capsule won't connect to internet at home but works at Apple Store. Internet connection is fine through ethernet - any ideas?

    A few days ago my Time Capsule stopped connecting to the internet at home. My internet connection is fine when I connect directly via ethernet. However when I plug the ethernet into the Time Capsule, it doesn't progress past the solid amber light. Doing a hard reset doesn't do anything. I took it to the Genius Bar two seperate times, and both times they were able to get it working there, but when I get it home it won't work. Any ideas of what the problem might be?

    Try resetting your broadband modem.  Depending on the model of modem, that can be as easy as removing power for a few moments.  If that doesn't work, remove power and wait 15 minutes.  Further reset steps can involve pressing a "reset" button or removing a battery if the modem has one.  In the worst case, your ISP may need to edit its settings to update to the MAC address of the new router.  If they won't or can't do that, powering down the modem for 16 to 36 hours can reset the connection.

  • Slow Internet Connection Speeds caused by Ethernet Controller Driver

    Problem:  Internet connection speeds are 1/10 of available connection speed.
    1. Problem statement is based on running speed tests at cnet, speedtest.net, and AT&T.
    2. I am paying for 12 MBps down load speed but I only get about 1.5 MBps.
    3. Other computers in household get 11+ MBps connected to the same ethernet cable and also different ethernet cables.
    4. I traced the problem to the network controller driver.
    5. I updated to the latest driver with no change in performance.
    6. After some experimenting I found that if I re-install the driver after the computer is booted up, the internet connection down load speeds increase to 11+ MBpS (typically around 11.4 with maximum capability of 12)
    I have assumed that the driver does not load properly the first time, but why?  Or is there some other cause or setting that I have overlooked?
    Board: MSI Z77A-G43
    Bios: Version 2.0
    Ethernet Controller:  RealTek RTL8168B PCIe GBE Family Controller
    Ethernet Controller Driver:  7.65.1025.2012
    VGA:   NVIDIA GeForce GTX 550 Ti
    PSU:   Raidmax RX630Z 630W
    Intel Core i7-2700K Sandy Bridge 3.5GHz LGA 1155 95W
    MEM: 4x4gb
    HDD (Primary): Western Digital  WD5000HHTZ-04N21V0 500MB
    HDD (Secondary): Hitachi Deskstar HDS723020BLA642 2TB
    OS: Windows 7 64bit Professional

    Have you installed all of the most recent drivers:
    http://www.msi.com/product/mb/Z77A-G43.html#/?div=Driver&os=Win7%2064
    There is also an realtek firmware update included in the latest bios:
    >>Beta BIOSes<<
    2.8 is the latest official & there are two newer beta bios's there as well.

  • Cannot connect to internet with iMac connected to airport via Ethernet

    Hi all,
    Firstly please forgive if this problem has been posted before but unfortunately i haven't yet been able to find a solution to my problem.
    I cannot seem to get my wireless network to work since updating my Airport to v5.7. I have reverted back to 5.6 but with no joy. OK, here's my setup - I have an iMac G5 1.8 which is connected to my airport via an ethernet cable (it is plugged into the correct port) and an iBook with an Airport card to connect wirelessly. The airprot is connected to my ADSL modem which is a D-Link 300T. When set up like this my iMac cannot connect to the internet even though my iBook can. When i take the4 iBook and Airport out of the equation my iMac connects fine to the internet via ethernet cable direct to my modem.
    As i've said, as soon as i bring in the iBook and Airport the iMac cannot connect via airport extreme, even though the iBook can connect.
    I have searched through the discussions looking for clues and answers. I have made sure that distrubute IP address is not checked and that internet sharing is off on my iMac but on on my iBook. I have tried all channels and all possible different settings on the airport admin utility but nothing works.
    I hope i've given enough information to give a clear indication what is wrong, if not please ask and i will try my best to answer. Any help would be much appreciated so i can convince my girlfriend that buying my iBook was not "a waste of money!".
    Many thanks in advance,
    Carl.

    Same questions as Paul.
    Open up the Network System Pref on the iMac G5.
    If you pick Show: "Network Status", what do you see ? Be precise.
    If you change Show: to "Built-in Ethernet", what do you see on the TCP/IP, PPPoE and Ethernet tabs ? Again, be precise.
    On the Network Status, you should see a green mark next to Built-In Ethernet, which should be at the top. It should also give you an IP address and tell you you are connected to the Internet. Well it would if it was working, so "say what you see".

  • Problems connecting two Macpro via ethernet while airport is on for interne

    I have two Macpro connected via ethernet. To make this connection work I have to go to system preferences/network and put ethernet the first in the list of "connectivity systems". As airport goes to the second place in the list I loose internet connection via airport. Is there any way of keep the two connections at the same time? It seems that only the first in the list works properly.
    Thank you.

    Mondotropo Hola, y una cálida bienvenida a los foros!
    The Interface that connects to the Internet, (Airport in your case), needs to be dragged to the top of Network>Show:>Network Port Configurations and checked ON.
    Local networking should use Ethernet below that... OSX tries the top one for Internet.
    La interfaz que se conecta a Internet, (el aeropuerto en su caso), debe ser arrastrado a la parte superior de la Red> Mostrar:> el puerto Ethernet y comprobarse.
    La creación de redes locales deben utilizar Ethernet debajo de ese ... OSX trata de la parte superior para Internet.

  • Cannot access rented movies via Clear USB Internet connection, but can via wifi and Time Warner Cable.  Has anyone encountered the same thing?

    I recently rented a movie from iTunes (version 10.4.1.10 on a Windows 7 professional laptop) and when I am at home, on my Clear USB connection, I don't see the Rented Movies in my Library.  When I bring my laptop to work however, and connect to a Time Warner Internet connection via wifi, I am able to see my Rented Movies in my Library.  Has anyone experienced anything similar?

    The problem is similar to
    https://discussions.apple.com/message/16594202#16594202
    and
    https://discussions.apple.com/message/16881706#16881706
    which have not been resolved either.

  • Internet Connection without Wireless or ethernet!

    you will have to excuse my ignorance, i'm looking to switch to a mac for the first time. i like the new macbooks.
    i need to be able to connect to the internet without using the wireless or having a connection to the macbook.
    as i understand PC data card cannot be used as i dont think the macbook has a slot for them..... correct me if i'm wrong.
    and i dont even know if you can use data cards with them?
    any help for a newbie.

    As you mention, PC Cards are not compatible with the MacBook as it does not have a PC Card slot. I've found that by far the simplest way to get an Internet connection on the road is to use a compatible Bluetooth 3G enabled mobile phone. Once the modem is paired with your Mac all you require is the appropriate modem script (I can highly recommend launch2net from NovaMedia…
    http://www.novamedia.de/epages/e_produkte_macl2n.html
    … for the script) to make a connection anywhere you can get a 3G signal.

  • No more internet connection to P1i via Airport Extreme?

    After yersterdays (03-1-08) Airport Extreme update my SonyEricsson P1i gets no more internet connection via WiFi. Whats happening?

    Seems Apple temporarily removed the the airport update with no explanation as to why, but i see it is once again available for tiger as well as leopard.
    Not sure if anything has changed but maybe you should try reinstalling?

  • Sharing internet connection with Windows via Airport

    Happy New Year, all!
    I have an iMac Intel Core Duo connected to an ADSL modem via ethernet. I'd like to share my internet connection via Airport with a Windows laptop (which is running XP with SP2). I've read that this is possible and I've tried setting it up but the laptop isn't seeing the Airport network at all.
    I've created a network with security off, from the Airport drop-down menu in the iMac menu bar, turned Internet Sharing on (Share from: ethernet - to computers using: Airport). I have Windows Sharing and Personal Web Sharing turned on, and my firewall is off. But the Airport network still doesn't show up on the laptop.
    Can anyone tell me what I'm doing wrong, or at least point me in the right direction.
    Many thanks in advance.

    i am having the same problem. i have the mac connected but when i go to windows i can't get the page open that says to connect. when i run the mouse over the icons at the bottom of the page it shows the airport signal being excellent. but i just can't get to a page to enter the "key to connect". it is greyed out and shows that it is limited or not connectivity.
    please someone help!
    movie lady

  • How to connect a pc via Ethernet to an Airport Extreme

    For about a year I have had an Airport Extreme running my iBook laptop on wifi and the iMac on Ethernet. I also have an IBM Thinkpad (T/P) running Windows 2000 which I wanted to connect via Ethernet cable to the AE and get on the internet to use various ham radio applications written for peecee's only. So far I have not been able to get the T/P to connect to the web, trying every way to get the thing to connect. The T/P is a second hand unit from work and I have no manual for it. There is also little documentation in the AE booklet concerning Ethernet and non-Mac gear. Does anyone have a suggestion as to how I can make this work, or another website that may have more specific info?
    Message was edited by: bob.c

    You are absolutely right about nothing with Windows being easy..... The ethernet cable is plugged in and I went to Network Connections and followed the wizard. Now I have a small icon on the right side of the bottom bar, looks like two computer screens but only one is green. A right click on it says the local area network is connected and sending 100 Mbps but receiving zero. If I go to Tools/Internet options, I can go thru the Internet Connection wizard for setting up a LAN. One of the pages asks to configure the proxy settings and has two choices: automatic discovery or "Use automatic configuration script" with a box labeled "Address". I don't know what to put in this address but have tried the IP address and the router address: no joy.There is also a check box for Manual Proxy server and I have tried both Yes and No....again, no joy. It's as though the T/P sees the internet doorway but can't bring anything back thru the door! Any further ideas sure would help. Thanks!

Maybe you are looking for

  • Something went wrong . . . Help?

    I bought the Emery cd The Weak's End from itunes and for some reason when I started listening to it for the first time a weird fuzzy noise was in the background. Thinking it was my speakers I listened to another song from another cd and it worked fin

  • Confused about import and workflow using existing filing system

    Ok folks, I purchased Lightroom last week and I am still staring at an empty Library module. I have thousands of images but I seem to have been overcome by a case of anxiety/paralysis. Why, you ask? I can't determine an import strategy; here's why. I

  • Share external drive with network PCs?

    Hi all- Figured I'd ask here as there are probably more people with an interest in sharing external drives... Anyway: I'm on a network, but need to set up a dedicated hard drive to share with 1 other person with a PC. The drive will hold all kinds of

  • Apple TV defaults to "Movies" pane displaying inappropriate cover art

    Each time the Apple TV sleeps, the default Apple TV display after exiting a screen mirroring (or Air Play) session is the "Movies" section.  Because the movies section shows a handful of recent movies with their cover art, we are finding a lot of ina

  • Customer routine during importing transport request

    Dear SAP-Specialists, the SAP-standard defines some objects as master data, but in our point of view it is not! So we want to transport these data (tableentries) via transportrequests to "qa" and productive system. But in case of some dependecies in