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  1. #1


    Member Since
    Sep 14, 2008
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    3
    Problems connecting two macs to same router
    I have a cable modem connected to a hub. for two years, my g5 imac has been connected to the hub as well as my roomates pc. neither of us have ever had any problems. recently, i've tried connecting a powerbook through the same hub. when i open safari there is no connection so i go through the network diagnostics (end up restarting the modem and hub) and the internet begins to work, however, i lose connection on my imac. i go through network diagnostics on my imac, get internet connection, and lose it on the powerbook. any ideas whats going on?

    a little extra info:

    -my roomates been out of town so i dont know how his connection has been affected

    -i called cox (my isp) and they assured me it was nothing to do with them.

    -I've tried two different hubs and had the exact same results

    -!!!often the powerbook will show green lights for "built in ethernet" "network settings" and "isp" , but red lights for "internet" and "server"

    any ideas/advice would be much appreciated


    -edit: originally i referred to my hub as a router, sorry for the stupid mistake and any confusion it may have caused

  2. #2

    fearlessfreap24's Avatar
    Member Since
    Feb 09, 2005
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    Specs:
    MacBook Pro 13" | MacBook Pro 13" | Mac Mini 2GHz C2D
    are you using static or dymanic ip addresses from the router?

    if the router is set up for dynamic, check your macs and make sure they are setup for dynamic also.

  3. #3

    CrimsonRequiem's Avatar
    Member Since
    Jul 24, 2008
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    Specs:
    MBP 2.3 Ghz 4GB RAM 860 GB SSD, iMac 3.4 GHz Intel Core i7 32GB RAM, Fusion Drive 1TB
    You sure it's a router and not a hub?

  4. #4

    dtravis7's Avatar
    Member Since
    Jan 04, 2005
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    Modesto, Ca.
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    Specs:
    iMac 2010 27" QuadI7 OSX10.11, iMac 2008 OSX10.11, MBP Late2011OSX10.11 , iPad Air, iPhone 3GS
    Quote Originally Posted by CrimsonRequiem View Post
    You sure it's a router and not a hub?
    That is what I was going to ask also. If it really is a router do you have the router set for DHCP?

  5. #5


    Member Since
    Sep 14, 2008
    Posts
    3
    i'm sorry, all of you are right, it is just a hub. what difference does this make?



    also, thanks for all the replies already

  6. #6

    dtravis7's Avatar
    Member Since
    Jan 04, 2005
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    Modesto, Ca.
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    Specs:
    iMac 2010 27" QuadI7 OSX10.11, iMac 2008 OSX10.11, MBP Late2011OSX10.11 , iPad Air, iPhone 3GS
    Each computer has to have a separate IP address. A Hub or even a Switch networks computers together but does not work like a router with a DHCP server and hand out IP address's for each computer.

    What Cable Modem do you have? Just checking to see if it might have a built in router like some DSL modems do.

  7. #7


    Member Since
    Sep 14, 2008
    Posts
    3
    Quote Originally Posted by dtravis7 View Post
    Each computer has to have a separate IP address. A Hub or even a Switch networks computers together but does not work like a router with a DHCP server and hand out IP address's for each computer.

    What Cable Modem do you have? Just checking to see if it might have a built in router like some DSL modems do.
    how would i solve the ip problem?

    the modem i have is this one:

    http://support.cox.com/sdccommon/asp...7-90e4e321738a

    ambit speedstream U10C018

    it's the one cox gave me when i started with them

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